'The process cannot access the file' during CI build sometimes #32219

BrennanConroy · 2021-04-27T15:45:53Z

This has been happening a few times recently. It's odd because BlazorTemplates.Tests doesn't depend on Microsoft.DotNet.Web.Spa.ProjectTemplates so it shouldn't be copying it anywhere.

There is some custom msbuild logic being invoked right before the error: https://github.com/dotnet/aspnetcore/blob/main/src/ProjectTemplates/TestInfrastructure/PrepareForTest.targets
So maybe that has something to do with it. We might just need to add /bl to this part of the build temporarily.

Example build:
https://dev.azure.com/dnceng/public/_build/results?buildId=1106179&view=logs&j=48c285a2-daf4-5ecb-cb99-42232769ca29&t=73646f8d-7520-5361-e1ad-d9d207b2cd21

./src/ProjectTemplates/build.sh --ci --nobl --pack --no-restore --no-build-deps
========================== Starting Command Output ===========================
/bin/bash --noprofile --norc /datadisks/disk1/workspace/_work/_temp/7404866d-8c11-4324-8bfe-b62b36813c80.sh
  RepoTasks -> /datadisks/disk1/workspace/_work/1/s/artifacts/bin/RepoTasks/Release/net6.0/RepoTasks.dll
  Successfully created package '/datadisks/disk1/workspace/_work/1/s/artifacts/packages/Release/Shipping/Microsoft.DotNet.Web.Client.ItemTemplates.6.0.0-ci.nupkg'.
  Successfully created package '/datadisks/disk1/workspace/_work/1/s/artifacts/packages/Release/Shipping/Microsoft.DotNet.Web.ItemTemplates.6.0.0-ci.nupkg'.
  Preparing environment for tests
  Removed directory /datadisks/disk1/workspace/_work/1/s/src/ProjectTemplates/BlazorTemplates.Tests/bin/Release/net6.0/TestTemplates/
  Removed directory /datadisks/disk1/workspace/_work/1/s/obj/template-restore/
  Created directory /datadisks/disk1/workspace/_work/1/s/src/ProjectTemplates/BlazorTemplates.Tests/bin/Release/net6.0/TestTemplates/
  Created directory /datadisks/disk1/workspace/_work/1/s/obj/template-restore/
  Successfully created package '/datadisks/disk1/workspace/_work/1/s/artifacts/packages/Release/Shipping/Microsoft.DotNet.Web.ProjectTemplates.6.0.6.0.0-ci.nupkg'.
/datadisks/disk1/workspace/_work/1/s/.dotnet/sdk/6.0.100-preview.4.21222.6/Microsoft.Common.CurrentVersion.targets(4965,5): error MSB3026: Could not copy "/datadisks/disk1/workspace/_work/1/s/artifacts/packages/Release/Shipping/Microsoft.DotNet.Web.Spa.ProjectTemplates.6.0.6.0.0-ci.nupkg" to "bin/Release/net6.0/Microsoft.DotNet.Web.Spa.ProjectTemplates.6.0.6.0.0-ci.nupkg". Beginning retry 1 in 1000ms. The process cannot access the file '/datadisks/disk1/workspace/_work/1/s/artifacts/packages/Release/Shipping/Microsoft.DotNet.Web.Spa.ProjectTemplates.6.0.6.0.0-ci.nupkg' because it is being used by another process.  [/datadisks/disk1/workspace/_work/1/s/src/ProjectTemplates/BlazorTemplates.Tests/BlazorTemplates.Tests.csproj]
##[error].dotnet/sdk/6.0.100-preview.4.21222.6/Microsoft.Common.CurrentVersion.targets(4965,5): error MSB3026: (NETCORE_ENGINEERING_TELEMETRY=Build) Could not copy "/datadisks/disk1/workspace/_work/1/s/artifacts/packages/Release/Shipping/Microsoft.DotNet.Web.Spa.ProjectTemplates.6.0.6.0.0-ci.nupkg" to "bin/Release/net6.0/Microsoft.DotNet.Web.Spa.ProjectTemplates.6.0.6.0.0-ci.nupkg". Beginning retry 1 in 1000ms. The process cannot access the file '/datadisks/disk1/workspace/_work/1/s/artifacts/packages/Release/Shipping/Microsoft.DotNet.Web.Spa.ProjectTemplates.6.0.6.0.0-ci.nupkg' because it is being used by another process. 
  Successfully created package '/datadisks/disk1/workspace/_work/1/s/artifacts/packages/Release/Shipping/Microsoft.DotNet.Web.Spa.ProjectTemplates.6.0.6.0.0-ci.nupkg'.
  Preparing environment for tests
  Removed directory /datadisks/disk1/workspace/_work/1/s/src/ProjectTemplates/test/bin/Release/net6.0/TestTemplates/
  Removed directory /datadisks/disk1/workspace/_work/1/s/obj/template-restore/
  Created directory /datadisks/disk1/workspace/_work/1/s/src/ProjectTemplates/test/bin/Release/net6.0/TestTemplates/
  Created directory /datadisks/disk1/workspace/_work/1/s/obj/template-restore/
  BlazorTemplates.Tests -> /datadisks/disk1/workspace/_work/1/s/src/ProjectTemplates/BlazorTemplates.Tests/bin/Release/net6.0/BlazorTemplates.Tests.dll
  ProjectTemplates.Tests -> /datadisks/disk1/workspace/_work/1/s/src/ProjectTemplates/test/bin/Release/net6.0/ProjectTemplates.Tests.dll

The text was updated successfully, but these errors were encountered:

dougbu · 2021-06-04T18:20:57Z

@JunTaoLuo this may be the start of the general issue around file contention in our builds that we discussed yesterday.

JunTaoLuo · 2021-06-05T01:01:36Z

We're hitting this somewhat frequently. Today there were two occurences: https://dev.azure.com/dnceng/public/_build/results?buildId=1172134&view=results, https://dev.azure.com/dnceng/public/_build/results?buildId=1172278&view=results

TanayParikh · 2021-06-08T18:28:12Z

Bin Logs:

CI: Pipelines - https://dev.azure.com/dnceng/public/_build/results?buildId=1176795&view=artifacts&pathAsName=false&type=publishedArtifacts

Commit Used: 0d75fcb

Original Failure: https://dev.azure.com/dnceng/public/_build/results?buildId=1172134&view=results

dougbu · 2021-06-21T21:49:04Z

Thought someone considered putting up a PR to implement @rainersigwald's idea (thanks @rainersigwald). Was that #33565 @pranavkm❔

Given that's done, do we have additional monitoring to do to ensure we addressed the main problem or to find additional build contention problems❔ Basically wondering if we can close this or need an over-arching "our build contends w/ itself (ick ❕) issue❔

If we don't need to track other build ordering / contention issues (@Pilchie @dotnet/aspdoi your thoughts ❔), suggest closing this near the end of your ops rotation @BrennanConroy.

pranavkm · 2021-06-21T21:59:57Z

Was that #33565 @pranavkm❔

Yeah, that was based on @rainersigwald's analysis. He had suggested making the outputs different, after playing around with it enough I realized we didn't need two sets of them.

BrennanConroy · 2021-06-22T02:23:56Z

Today:

##[error].dotnet/sdk/6.0.100-preview.6.21313.2/Microsoft.Common.CurrentVersion.targets(2202,5):
error MSB3248: (NETCORE_ENGINEERING_TELEMETRY=Build) Parameter "AssemblyFiles" has invalid value 
"/Users/runner/work/1/s/artifacts/bin/Microsoft.AspNetCore.Hosting/Release/net6.0/Microsoft.AspNetCore.Hosting.dll".
The process cannot access the file '/Users/runner/work/1/s/artifacts/bin/Microsoft.AspNetCore.Hosting/Release/net6.0/Microsoft.AspNetCore.Hosting.dll'
because it is being used by another process.

https://dev.azure.com/dnceng/public/_build/results?buildId=1198450&view=logs&jobId=f43b187f-6c15-531c-a59b-e4fba4e9ed20&j=f43b187f-6c15-531c-a59b-e4fba4e9ed20&t=98a09275-a4dd-593e-c21a-1f8bea3be5b1

Eilon · 2021-06-22T20:36:58Z

Failing on multiple runs in my PR: https://dev.azure.com/dnceng/public/_build/results?buildId=1199902&view=logs&jobId=f43b187f-6c15-531c-a59b-e4fba4e9ed20&j=f43b187f-6c15-531c-a59b-e4fba4e9ed20&t=98a09275-a4dd-593e-c21a-1f8bea3be5b1

wtgodbe · 2021-07-06T22:59:21Z

Not necessarily fixed yet, we've seen the issue on other projects other than just BasicTestApp

TanayParikh · 2021-07-06T23:00:09Z

Do you know which other projects? Maybe just a matter of adding this to the appropriate references?

#34137 (comment)

TanayParikh · 2021-07-07T17:34:27Z

eng/AfterSolutionBuild.targets(15,5): error MSB4018: (NETCORE_ENGINEERING_TELEMETRY=Build) The "RepoTasks.RemoveSharedFrameworkDependencies" task failed unexpectedly.
System.IO.IOException: The process cannot access the file '/datadisks/disk1/workspace/_work/1/s/artifacts/packages/Release/Shipping/Microsoft.AspNetCore.App.Runtime.linux-x64.6.0.0-ci.nupkg' because it is being used by another process.
   at Microsoft.Win32.SafeHandles.SafeFileHandle.Init(String path, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize) in System.Private.CoreLib.dll:token 0x60000ce+0x0
   at Microsoft.Win32.SafeHandles.SafeFileHandle.Open(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize) in System.Private.CoreLib.dll:token 0x60000cc+0x31
   at System.IO.Strategies.Net5CompatFileStreamStrategy..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, Int64 preallocationSize) in System.Private.CoreLib.dll:token 0x600601b+0x6f
   at System.IO.File.Open(String path, FileMode mode) in System.Private.CoreLib.dll:token 0x6005c1d+0x0
   at RepoTasks.RemoveSharedFrameworkDependencies.FilterDependencies(String targetPath, ISet`1 dependencyToRemove) in /_/eng/tools/RepoTasks/RemoveSharedFrameworkDependencies.cs:line 48
   at RepoTasks.RemoveSharedFrameworkDependencies.Execute() in /_/eng/tools/RepoTasks/RemoveSharedFrameworkDependencies.cs:line 38
   at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() in Microsoft.Build.dll:token 0x60015fc+0x3e
   at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask) in Microsoft.Build.dll:token 0x600147b+0x804

Seen in https://dev.azure.com/dnceng/public/_build/results?buildId=1224315&view=logs&jobId=b72e85ab-3386-5aa9-6405-3837662d9688

TanayParikh · 2021-07-07T21:57:42Z

Still failing on BasicTestApp

D:\workspace\_work\1\s\.dotnet\sdk\6.0.100-preview.7.21356.3\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.Current.targets(637,5): error : The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\BasicTestApp\Release\net6.0\compress\J3Pxu+Zq.gz' because it is being used by another process. [D:\workspace\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
##[error].dotnet\sdk\6.0.100-preview.7.21356.3\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.Current.targets(637,5): error : (NETCORE_ENGINEERING_TELEMETRY=Build) The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\BasicTestApp\Release\net6.0\compress\J3Pxu+Zq.gz' because it is being used by another process.

https://dev.azure.com/dnceng/public/_build/results?buildId=1225341&view=logs&j=3f6d4e0f-1b71-56b5-361e-d95b6e6da15a&t=9605d305-57d3-55b8-ba79-e50442d32137&l=2220

https://github.com/dotnet/aspnetcore/pull/34033/checks?check_run_id=3013535904

Created PR to generate bin logs: #34189

Eilon · 2021-07-15T20:58:21Z

And still failing on my PR: https://github.com/dotnet/aspnetcore/pull/33482/checks?check_run_id=3080384712

dougbu · 2021-07-16T18:15:59Z

Failing in rolling builds too e.g. https://dev.azure.com/dnceng/public/_build/results?buildId=1242042&view=results

/datadisks/disk1/workspace/_work/1/s/.dotnet/sdk/6.0.100-preview.7.21364.4/Sdks/Microsoft.NET.Sdk.BlazorWebAssembly/targets/Microsoft.NET.Sdk.BlazorWebAssembly.Current.targets(637,5): error : The process cannot access the file '/datadisks/disk1/workspace/_work/1/s/artifacts/obj/BasicTestApp/Release/net6.0/compress/5P5wgw90.gz' because it is being used by another process. [/datadisks/disk1/workspace/_work/1/s/src/Components/test/testassets/BasicTestApp/BasicTestApp.csproj]

@HaoK thoughts on taking BasicTestApp out of the equation again❔ We had things in a better state at one point but the problem got worse after we re-enabled use of this app and tried to fix the underlying issue.

BrennanConroy · 2021-09-24T22:37:43Z

There are plenty more than this, this is just a few of the "cannot access the file" issues from the past couple days.

Tests: Helix x64, Build shared fx

D:\workspace\_work\1\s\.dotnet\sdk\6.0.100-rtm.21466.6\Microsoft.Common.CurrentVersion.targets(5417,5): error MSB3491: Could not write lines to file "D:\workspace\_work\1\s\artifacts\obj\Microsoft.JSInterop.WebAssembly\Release\net6.0\Microsoft.JSInterop.WebAssembly.csproj.FileListAbsolute.txt". The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\Microsoft.JSInterop.WebAssembly\Release\net6.0\Microsoft.JSInterop.WebAssembly.csproj.FileListAbsolute.txt' because it is being used by another process. [D:\workspace\_work\1\s\src\Components\WebAssembly\JSInterop\src\Microsoft.JSInterop.WebAssembly.csproj]
##[error].dotnet\sdk\6.0.100-rtm.21466.6\Microsoft.Common.CurrentVersion.targets(5417,5): error MSB3491: (NETCORE_ENGINEERING_TELEMETRY=Build) Could not write lines to file "D:\workspace\_work\1\s\artifacts\obj\Microsoft.JSInterop.WebAssembly\Release\net6.0\Microsoft.JSInterop.WebAssembly.csproj.FileListAbsolute.txt". The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\Microsoft.JSInterop.WebAssembly\Release\net6.0\Microsoft.JSInterop.WebAssembly.csproj.FileListAbsolute.txt' because it is being used by another process.

Tests: Helix x64, Build shared fx

D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018: The "GetFileHash" task failed unexpectedly. [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018: System.AggregateException: One or more errors occurred. (The process cannot access the file 'D:\a\_work\1\s\artifacts\obj\BasicTestApp\Release\net7.0\linked\System.Private.CoreLib.dll' because it is being used by another process.) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:  ---> System.IO.IOException: The process cannot access the file 'D:\a\_work\1\s\artifacts\obj\BasicTestApp\Release\net7.0\linked\System.Private.CoreLib.dll' because it is being used by another process. [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at Microsoft.Win32.SafeHandles.SafeFileHandle.CreateFile(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at Microsoft.Win32.SafeHandles.SafeFileHandle.Open(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at System.IO.Strategies.OSFileStreamStrategy..ctor(String path, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at Microsoft.Build.Tasks.GetFileHash.ComputeHash(Func`1 algorithmFactory, String filePath) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at Microsoft.Build.Tasks.GetFileHash.<>c__DisplayClass28_0.<Execute>b__0(Int32 index) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at System.Threading.Tasks.Parallel.<>c__DisplayClass19_0`1.<ForWorker>b__1(RangeWorker& currentWorker, Int32 timeout, Boolean& replicationDelegateYieldedBeforeCompletion) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018: --- End of stack trace from previous location --- [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at System.Threading.Tasks.Parallel.<>c__DisplayClass19_0`1.<ForWorker>b__1(RangeWorker& currentWorker, Int32 timeout, Boolean& replicationDelegateYieldedBeforeCompletion) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at System.Threading.Tasks.TaskReplicator.Replica.Execute() [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    --- End of inner exception stack trace --- [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at System.Threading.Tasks.TaskReplicator.Run[TState](ReplicatableUserAction`1 action, ParallelOptions options, Boolean stopOnFirstFailure) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018: --- End of stack trace from previous location --- [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at System.Threading.Tasks.Parallel.ThrowSingleCancellationExceptionOrOtherException(ICollection exceptions, CancellationToken cancelToken, Exception otherException) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at System.Threading.Tasks.Parallel.For(Int32 fromInclusive, Int32 toExclusive, Action`1 body) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at Microsoft.Build.Tasks.GetFileHash.Execute() [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
D:\a\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018:    at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(ITaskExecutionHost taskExecutionHost, TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExecuteTask) [D:\a\_work\1\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
##[error].dotnet\sdk\7.0.100-alpha.1.21463.2\Sdks\Microsoft.NET.Sdk.BlazorWebAssembly\targets\Microsoft.NET.Sdk.BlazorWebAssembly.6_0.targets(555,5): error MSB4018: (NETCORE_ENGINEERING_TELEMETRY=Build) The "GetFileHash" task failed unexpectedly.

Test: Windows 2016 x64, Run build.cmd

D:\workspace\_work\1\s\.dotnet\sdk\6.0.100-rtm.21466.6\Microsoft.Common.CurrentVersion.targets(2315,5): error MSB3248: Parameter "AssemblyFiles" has invalid value "D:\workspace\_work\1\s\artifacts\bin\Microsoft.AspNetCore.Hosting\Release\net6.0\Microsoft.AspNetCore.Hosting.dll". The process cannot access the file 'D:\workspace\_work\1\s\artifacts\bin\Microsoft.AspNetCore.Hosting\Release\net6.0\Microsoft.AspNetCore.Hosting.dll' because it is being used by another process. [D:\workspace\_work\1\s\src\SignalR\samples\SocialWeather\SocialWeather.csproj]
##[error].dotnet\sdk\6.0.100-rtm.21466.6\Microsoft.Common.CurrentVersion.targets(2315,5): error MSB3248: (NETCORE_ENGINEERING_TELEMETRY=Build) Parameter "AssemblyFiles" has invalid value "D:\workspace\_work\1\s\artifacts\bin\Microsoft.AspNetCore.Hosting\Release\net6.0\Microsoft.AspNetCore.Hosting.dll". The process cannot access the file 'D:\workspace\_work\1\s\artifacts\bin\Microsoft.AspNetCore.Hosting\Release\net6.0\Microsoft.AspNetCore.Hosting.dll' because it is being used by another process.

Test: macOS 10.15, Run build.sh

CSC : error CS0009: Metadata file '/Users/runner/work/1/s/artifacts/bin/Microsoft.AspNetCore.Server.Kestrel.Transport.Quic/Release/net6.0/ref/Microsoft.AspNetCore.Server.Kestrel.Transport.Quic.dll' could not be opened -- The process cannot access the file '/Users/runner/work/1/s/artifacts/bin/Microsoft.AspNetCore.Server.Kestrel.Transport.Quic/Release/net6.0/ref/Microsoft.AspNetCore.Server.Kestrel.Transport.Quic.dll' because it is being used by another process. [/Users/runner/work/1/s/src/Middleware/Localization/testassets/LocalizationWebsite/LocalizationWebsite.csproj]
##[error]CSC(0,0): error CS0009: (NETCORE_ENGINEERING_TELEMETRY=Build) Metadata file '/Users/runner/work/1/s/artifacts/bin/Microsoft.AspNetCore.Server.Kestrel.Transport.Quic/Release/net6.0/ref/Microsoft.AspNetCore.Server.Kestrel.Transport.Quic.dll' could not be opened -- The process cannot access the file '/Users/runner/work/1/s/artifacts/bin/Microsoft.AspNetCore.Server.Kestrel.Transport.Quic/Release/net6.0/ref/Microsoft.AspNetCore.Server.Kestrel.Transport.Quic.dll' because it is being used by another process.

Tests: Helix x64, Build shared fx

D:\workspace\_work\1\s\.dotnet\sdk\6.0.100-rtm.21466.6\Microsoft.Common.CurrentVersion.targets(5417,5): error MSB3491: Could not write lines to file "D:\workspace\_work\1\s\artifacts\obj\Microsoft.JSInterop.WebAssembly\Release\net6.0\Microsoft.JSInterop.WebAssembly.csproj.FileListAbsolute.txt". The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\Microsoft.JSInterop.WebAssembly\Release\net6.0\Microsoft.JSInterop.WebAssembly.csproj.FileListAbsolute.txt' because it is being used by another process. [D:\workspace\_work\1\s\src\Components\WebAssembly\JSInterop\src\Microsoft.JSInterop.WebAssembly.csproj]
##[error].dotnet\sdk\6.0.100-rtm.21466.6\Microsoft.Common.CurrentVersion.targets(5417,5): error MSB3491: (NETCORE_ENGINEERING_TELEMETRY=Build) Could not write lines to file "D:\workspace\_work\1\s\artifacts\obj\Microsoft.JSInterop.WebAssembly\Release\net6.0\Microsoft.JSInterop.WebAssembly.csproj.FileListAbsolute.txt". The process cannot access the file 'D:\workspace\_work\1\s\artifacts\obj\Microsoft.JSInterop.WebAssembly\Release\net6.0\Microsoft.JSInterop.WebAssembly.csproj.FileListAbsolute.txt' because it is being used by another process.

Test: Windows Server 2016 x64, Run build.cmd

D:\workspace\_work\1\s\.dotnet\sdk\7.0.100-alpha.1.21463.2\Microsoft.Common.CurrentVersion.targets(4646,5): error MSB3026: Could not copy "D:\workspace\_work\1\s\artifacts\obj\Microsoft.AspNetCore.Connections.Abstractions\Release\net6.0\Microsoft.AspNetCore.Connections.Abstractions.dll" to "D:\workspace\_work\1\s\artifacts\bin\Microsoft.AspNetCore.Connections.Abstractions\Release\net6.0\Microsoft.AspNetCore.Connections.Abstractions.dll". Beginning retry 1 in 1000ms. The requested operation cannot be performed on a file with a user-mapped section open. : 'D:\workspace\_work\1\s\artifacts\bin\Microsoft.AspNetCore.Connections.Abstractions\Release\net6.0\Microsoft.AspNetCore.Connections.Abstractions.dll'  [D:\workspace\_work\1\s\src\Servers\Connections.Abstractions\src\Microsoft.AspNetCore.Connections.Abstractions.csproj]
##[error].dotnet\sdk\7.0.100-alpha.1.21463.2\Microsoft.Common.CurrentVersion.targets(4646,5): error MSB3026: (NETCORE_ENGINEERING_TELEMETRY=Build) Could not copy "D:\workspace\_work\1\s\artifacts\obj\Microsoft.AspNetCore.Connections.Abstractions\Release\net6.0\Microsoft.AspNetCore.Connections.Abstractions.dll" to "D:\workspace\_work\1\s\artifacts\bin\Microsoft.AspNetCore.Connections.Abstractions\Release\net6.0\Microsoft.AspNetCore.Connections.Abstractions.dll". Beginning retry 1 in 1000ms. The requested operation cannot be performed on a file with a user-mapped section open. : 'D:\workspace\_work\1\s\artifacts\bin\Microsoft.AspNetCore.Connections.Abstractions\Release\net6.0\Microsoft.AspNetCore.Connections.Abstractions.dll'

dougbu · 2021-10-08T23:57:17Z

Have seen another variant of this in the last few days, most recently in validation of #37412. We're back to what #34137 should have fixed ☹️ though ILLink may also have regressed (@eerhardt @ViktorHofer❔)

ILLink : error IL1012: IL Trimmer has encountered an unexpected error. Please report the issue at https://github.com/dotnet/linker/issues [D:\a\_work\2\s\src\Components\test\testassets\BasicTestApp\BasicTestApp.csproj]
##[error]ILLink(0,0): error IL1012: (NETCORE_ENGINEERING_TELEMETRY=Build) IL Trimmer has encountered an unexpected error. Please report the issue at https://github.com/dotnet/linker/issues
  Fatal error in IL Linker
  Unhandled exception. Mono.Linker.InternalErrorException: Step 'OutputStep' failed when processing assembly 'System.Private.Xml, Version=7.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'.
   ---> Mono.Linker.LinkerFatalErrorException: ILLink: error IL1011: Failed to write 'D:\a\_work\2\s\artifacts\obj\BasicTestApp\Release\net7.0\linked\System.Private.Xml.dll'.
   ---> System.IO.IOException: The process cannot access the file 'D:\a\_work\2\s\artifacts\obj\BasicTestApp\Release\net7.0\linked\System.Private.Xml.dll' because it is being used by another process.
     at Microsoft.Win32.SafeHandles.SafeFileHandle.CreateFile(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options)
     at Microsoft.Win32.SafeHandles.SafeFileHandle.Open(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize)
     at System.IO.Strategies.OSFileStreamStrategy..ctor(String path, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize)
     at System.IO.Strategies.FileStreamHelpers.ChooseStrategyCore(String path, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize)
     at System.IO.Strategies.FileStreamHelpers.ChooseStrategy(FileStream fileStream, String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, Int64 preallocationSize)
     at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
     at Mono.Cecil.ModuleDefinition.GetFileStream(String fileName, FileMode mode, FileAccess access, FileShare share)
     at Mono.Cecil.ModuleDefinition.Write(String fileName, WriterParameters parameters)
     at Mono.Cecil.AssemblyDefinition.Write(String fileName, WriterParameters parameters)
     at Mono.Linker.Steps.OutputStep.WriteAssembly(AssemblyDefinition assembly, String directory, WriterParameters writerParameters)
     --- End of inner exception stack trace ---
     at Mono.Linker.Steps.OutputStep.WriteAssembly(AssemblyDefinition assembly, String directory, WriterParameters writerParameters)
     at Mono.Linker.Steps.OutputStep.WriteAssembly(AssemblyDefinition assembly, String directory)
     at Mono.Linker.Steps.OutputStep.OutputAssembly(AssemblyDefinition assembly)
     at Mono.Linker.Steps.OutputStep.ProcessAssembly(AssemblyDefinition assembly)
     at Mono.Linker.Steps.BaseStep.Process(LinkContext context)
     --- End of inner exception stack trace ---
     at Mono.Linker.Steps.BaseStep.Process(LinkContext context)
     at Mono.Linker.Pipeline.ProcessStep(LinkContext context, IStep step)
     at Mono.Linker.Pipeline.Process(LinkContext context)

eerhardt · 2021-10-12T15:36:06Z

FYI @agocke @vitek-karas @sbomer

@dougbu - do you happen to have a binlog or repro steps to recreate the error?

agocke · 2021-10-12T17:13:11Z

There's only one place we use memory mapping in the linker and it looks like that file hasn't changed since Aug 31, so it seems unlikely this is a linker change.

dougbu · 2021-10-20T20:24:39Z

Ah, rerun overwrote the _Logs artifact 😦 I got the dumps from the Windows_Test_Dumps artifact. Went looking there because we capture dotnet dumps now and the process didn't exit normally according to the console logs for the first attempt.

Might be interesting to include the attempt number in some of the artifact names❔

wtgodbe · 2021-10-20T20:29:04Z

Might be interesting to include the attempt number in some of the artifact names❔

Looks like source build does that already. I think it's probably ok to do that - we would be increasing the amount of stuff we upload, but wouldn't be going beyond what one would typically expect (that is, we wouldn't be uploading more sets of logs than jobs ran. Whereas today we may upload fewer)

TanayParikh · 2021-10-20T20:32:30Z

Is:

/private/tmp/helix/working/B54D0A27/p/dotnet-cli/sdk/7.0.100-alpha.1.21518.14/NuGet.targets(130,5): error : The file '/private/tmp/helix/working/B54D0A27/w/AC3B0975/e/Templates/BaseFolder/AspNet.gkbjaf22lj3/Shared/obj/project.nuget.cache' already exists. [/tmp/helix/working/B54D0A27/w/AC3B0975/e/Templates/BaseFolder/AspNet.gkbjaf22lj3/AspNet.gkbjaf22lj3.sln]

the same issue, or should I create a new one?

https://dev.azure.com/dnceng/public/_build/results?buildId=1432636&view=ms.vss-test-web.build-test-results-tab&runId=41386032&resultId=120049&paneView=debug

wtgodbe · 2021-10-20T20:33:23Z

That's a different issue, see #37715 and https://teams.microsoft.com/l/message/19:[email protected]/1634747033503?tenantId=72f988bf-86f1-41af-91ab-2d7cd011db47&groupId=fdff90ed-0b3b-4caa-a30a-efb4dd47665f&parentMessageId=1634747033503&teamName=DotNet&channelName=ASP.NET%20Build&createdTime=1634747033503 for context

dougbu · 2022-01-19T23:30:26Z

This remains a problem in some of our branches, especially release/5.0. We probably have fixes or partial fixes in 'main' that haven't been backported to either or both release/3.1 or release/5.0. Might even have a couple that aren't in release/6.0. For example, are the following everywhere they could be (and did they help 😃)❔

dougbu · 2022-06-11T03:14:15Z

I think this problem is behind us in 'main' only question remaining is whether we need to backport some of the relevant fixes to servicing branches. Thoughts❔

wtgodbe · 2022-06-13T16:21:01Z

I don't think I've seen this issue in servicing lately, but I'm not 100% sure. It definitely seems to be less prevalent, at least.

ayakael · 2022-10-23T03:49:31Z

I'm encountering this on linux-musl-s390x on commit c6865355c01e1fb170b65427846d939559ab3789 with sdk version 7.0.100-rtm.22519.39 when building in a source-build workflow. Is there something I can do to mitigate this issue? It isn't a problem on linux-musl-s390x with sdk version 6.0.110.

edit Note that the runtime is Mono flavored, and so far the issue hasn't occured on arm, arm64 or x64.

dougbu · 2022-10-23T18:08:02Z

@ayakael the problem is rather inconsistent and doesn't happen frequently. Building a second time is usually successful.

ayakael · 2022-10-23T18:25:15Z

@ayakael the problem is rather inconsistent and doesn't happen frequently. Building a second time is usually successful.

The issue is that is guaranteed to happen at least once during the building process of dotnet7 for Alpine on s390x. As our builders restart the building process from scratch when there's a failure, it'll often take 5-6 full rebuilds before getting through. I'm more perplexed by it not being an issue on dotnet6, but suddently it is on dotnet7, suggesting a regression.

ayakael · 2022-10-24T02:45:39Z

I've reproduced this with ppc64le, thus seems to be specific to mono flavored runtime with dotnet7. This particular instance is with runtime: link

Another failure with roslyn is shown here

Usually, error appears as so:

/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error : The process cannot access the file '/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/artifacts/obj/System.IO.Ports' because it is being used by another process. [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at System.IO.FileSystem.CreateDirectory(String fullPath, UnixFileMode unixCreateMode) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at System.IO.FileSystem.CreateDirectory(String fullPath) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at System.IO.Directory.CreateDirectory(String path) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Commands.BuildAssetsUtils.WriteFiles(IEnumerable`1 files, ILogger log) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Commands.RestoreResult.CommitAssetsFileAsync(LockFileFormat lockFileFormat, IRestoreResult result, ILogger log, Boolean toolCommit, CancellationToken token) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Commands.RestoreResult.CommitAsync(ILogger log, CancellationToken token) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Commands.RestoreRunner.CommitAsync(RestoreResultPair restoreResult, CancellationToken token) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Commands.RestoreRunner.ExecuteAndCommitAsync(RestoreSummaryRequest summaryRequest, IRestoreProgressReporter progressReporter, CancellationToken token) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Commands.RestoreRunner.CompleteTaskAsync(List`1 restoreTasks) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Commands.RestoreRunner.RunAsync(IEnumerable`1 restoreRequests, RestoreArgs restoreArgs, CancellationToken token) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Commands.RestoreRunner.RunAsync(RestoreArgs restoreContext, CancellationToken token) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Build.Tasks.BuildTasksUtility.RestoreAsync(DependencyGraphSpec dependencyGraphSpec, Boolean interactive, Boolean recursive, Boolean noCache, Boolean ignoreFailedSources, Boolean disableParallel, Boolean force, Boolean forceEvaluate, Boolean hideWarningsAndErrors, Boolean restorePC, Boolean cleanupAssetsForUnsupportedProjects, ILogger log, CancellationToken cancellationToken) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]
/builds/ayakael/aports/testing/dotnet7-stage0/src/bootstrap/sdk/7.0.100-rtm.22519.39/NuGet.RestoreEx.targets(19,5): error :    at NuGet.Build.Tasks.Console.MSBuildStaticGraphRestore.RestoreAsync(String entryProjectFilePath, IDictionary`2 globalProperties, IReadOnlyDictionary`2 options) [/builds/ayakael/aports/testing/dotnet7-stage0/src/dotnet-d41bfecf5090e9163aa2da251246abed9e756e53/src/runtime/Build.proj]

Thus occurs during restore. Further research has shown that there are many different ways that this bug can occur, so it likely doesn't have to do with aspnetcore. Some pointers would be appreciated, though.

dougbu · 2022-10-24T02:53:21Z

I suggest examining a binary log and trying to determine what else is accessing the file. We don't use mono-based runtimes ourselves and unfortunately can't help directly.

thebeard-lifebell · 2023-01-26T14:02:17Z

I think this is related to dotnet publish or dotnet build invoking msbuild with -maxcpucount and not providing an integer for the # cpus to use. This makes it so that msbuild auto-selects how many cpus to use, which on multi-core/multi-threaded machines is more than 1.

We were having this issue in our Github Actions build, so we added the -maxcpucount:1 argument to the dotnet publish command, which overrode the -maxcpucount switch passed by dotnet to msbuild, which made the process single-threaded, which relieved the file contention issue.

I'm not sure if this is the solution, but it might help. Good luck!

P.S: A Stackoverflow about this

wtgodbe · 2023-01-31T19:28:35Z

Closing as we haven't seen this in a while - will re-open if it comes back.

wtgodbe · 2024-04-22T16:33:40Z

We're still seeing this occasionally - @amcasey suggested trying to NoWarn MSB3026, which could be worth a try if we can convince ourselves it won't get us into trouble w/ further SDK logic. https://dev.azure.com/dnceng-public/public/_build/results?buildId=645948&view=results

amcasey · 2024-04-22T16:39:23Z

We're still seeing this occasionally - @amcasey suggested trying to NoWarn MSB3026, which could be worth a try if we can convince ourselves it won't get us into trouble w/ further SDK logic. https://dev.azure.com/dnceng-public/public/_build/results?buildId=645948&view=results

This suggestion assumes, perhaps naively, that there's a different error code when the last retry fails.

BrennanConroy added the area-infrastructure Includes: MSBuild projects/targets, build scripts, CI, Installers and shared framework label Apr 27, 2021

TanayParikh mentioned this issue Jun 8, 2021

Investigate CI Test Resource Contention #33371

Closed

JunTaoLuo assigned BrennanConroy Jun 21, 2021

BrennanConroy removed their assignment Jun 22, 2021

JunTaoLuo mentioned this issue Jul 3, 2021

Collect bin log #34049

Closed

TanayParikh mentioned this issue Jul 6, 2021

Fix The process cannot access the file in CI #34137

Merged

TanayParikh closed this as completed in #34137 Jul 6, 2021

wtgodbe reopened this Jul 6, 2021

TanayParikh mentioned this issue Jul 7, 2021

Onboard Package Validation SDK #34122

Closed

2 tasks

This was referenced Jul 7, 2021

Collect Bin Logs For Process Cannot Access... #34189

Closed

[main] Update dependencies from dotnet/efcore dotnet/runtime #34033

Merged

This was referenced Oct 6, 2021

Improve project reference consistency #37338

Merged

Stop Collecting CI Test Bin Logs #37343

Closed

HaoK mentioned this issue Oct 27, 2021

[main] Update dependencies from dotnet/efcore #37878

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This was referenced Oct 28, 2021

Unskip signalr test #37894

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Create AzDO PR templates for internal/* branches #37917

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[main] (deps): Bump src/submodules/spa-templates from a575301 to ffdec25 #37983

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TanayParikh mentioned this issue Nov 4, 2021

Stop Building Components/E2E tests in the main pipeline #38090

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dougbu assigned dougbu and wtgodbe Jan 19, 2022

wtgodbe mentioned this issue Jan 24, 2022

[release/5.0] Improve File access issues #39732

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halter73 mentioned this issue Apr 5, 2022

Remove BuildX64 target #41040

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mkArtakMSFT mentioned this issue Jan 3, 2023

Transient local build failures: error MSB3491: Could not write lines to file #45596

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TanayParikh commented Jul 7, 2021 •

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ayakael commented Oct 23, 2022 •

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ayakael commented Oct 24, 2022 •

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