Make missing framework error message list other architectures that were found

src/installer/tests/HostActivation.Tests/FrameworkResolution/ApplyPatchesSettings.cs

@@ -5,6 +5,8 @@
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class ApplyPatchesSettings :

src/installer/tests/HostActivation.Tests/FrameworkResolution/ComplexHierarchies.cs

@@ -6,6 +6,8 @@
 using System;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class ComplexHierarchies :

src/installer/tests/HostActivation.Tests/FrameworkResolution/FrameworkResolutionBase.Settings.cs

@@ -85,7 +85,7 @@ public enum SettingLocation
         public static Func<TestSettings, TestSettings> RollForwardSetting(
             SettingLocation location,
             string value,
-            string frameworkReferenceName = MicrosoftNETCoreApp)
+            string frameworkReferenceName = Constants.MicrosoftNETCoreApp)
         {
             if (value == null || location == SettingLocation.None)
             {
@@ -114,7 +114,7 @@ public static Func<TestSettings, TestSettings> RollForwardSetting(
         public static Func<TestSettings, TestSettings> RollForwardOnNoCandidateFxSetting(
             SettingLocation location,
             int? value,
-            string frameworkReferenceName = MicrosoftNETCoreApp)
+            string frameworkReferenceName = Constants.MicrosoftNETCoreApp)
         {
             if (!value.HasValue || location == SettingLocation.None)
             {
@@ -143,7 +143,7 @@ public static Func<TestSettings, TestSettings> RollForwardOnNoCandidateFxSetting
         public static Func<TestSettings, TestSettings> ApplyPatchesSetting(
             SettingLocation location,
             bool? value,
-            string frameworkReferenceName = MicrosoftNETCoreApp)
+            string frameworkReferenceName = Constants.MicrosoftNETCoreApp)
         {
             if (!value.HasValue || location == SettingLocation.None)
             {

src/installer/tests/HostActivation.Tests/FrameworkResolution/FrameworkResolutionBase.cs

@@ -11,8 +11,6 @@ namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public abstract partial class FrameworkResolutionBase
     {
-        protected const string MicrosoftNETCoreApp = "Microsoft.NETCore.App";
-
         public static class ResolvedFramework
         {
             public const string NotFound = "[not found]";
@@ -23,7 +21,6 @@ protected CommandResult RunTest(
             DotNetCli dotnet,
             TestApp app,
             TestSettings settings,
-            Action<CommandResult> resultAction = null,
             bool? multiLevelLookup = false)
         {
             using (DotNetCliExtensions.DotNetCliCustomizer dotnetCustomizer = settings.DotnetCustomizer == null ? null : dotnet.Customize())
@@ -53,8 +50,6 @@ protected CommandResult RunTest(
                     .Environment(settings.Environment)
                     .Execute();
 
-                resultAction?.Invoke(result);
-
                 return result;
             }
         }

src/installer/tests/HostActivation.Tests/FrameworkResolution/FxVersionCLI.cs

@@ -5,6 +5,8 @@
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class FXVersionCLI :

src/installer/tests/HostActivation.Tests/FrameworkResolution/IncludedFrameworksSettings.cs

@@ -5,6 +5,8 @@
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class IncludedFrameworksSettings :

src/installer/tests/HostActivation.Tests/FrameworkResolution/MultipleHives.cs

@@ -8,6 +8,7 @@
 using Microsoft.DotNet.Cli.Build;
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
 
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
@@ -217,6 +218,50 @@ public void FrameworkResolutionError(string tfm, bool? multiLevelLookup, bool ef
                 .And.HaveStdErrContaining("Ignoring FX version [9999.9.9] without .deps.json");
         }
 
+        [Fact]
+        public void FrameworkResolutionError_ListOtherArchitectures()
+        {
+            using (var registeredInstallLocationOverride = new RegisteredInstallLocationOverride(SharedState.DotNetMainHive.GreatestVersionHostFxrFilePath))
+            using (var otherArchArtifact = TestArtifact.Create("otherArch"))
+            {
+                string requestedVersion = "9999.9.9";
+                string[] otherArchs = ["arm64", "x64", "x86"];
+                var installLocations = new (string, string)[otherArchs.Length];
+                for (int i = 0; i < otherArchs.Length; i++)
+                {
+                    string arch = otherArchs[i];
+
+                    // Create a .NET install with Microsoft.NETCoreApp at the registered location
+                    var dotnet = new DotNetBuilder(otherArchArtifact.Location, TestContext.BuiltDotNet.BinPath, arch)
+                        .AddMicrosoftNETCoreAppFrameworkMockHostPolicy(requestedVersion)
+                        .Build();
+                    installLocations[i] = (arch, dotnet.BinPath);
+                }
+
+                registeredInstallLocationOverride.SetInstallLocation(installLocations);
+
+                CommandResult result = RunTest(
+                    new TestSettings()
+                        .WithRuntimeConfigCustomizer(c => c.WithFramework(MicrosoftNETCoreApp, requestedVersion))
+                        .WithEnvironment(TestOnlyEnvironmentVariables.RegisteredConfigLocation, registeredInstallLocationOverride.PathValueOverride),
+                    multiLevelLookup: null);
+
+                result.ShouldFailToFindCompatibleFrameworkVersion(MicrosoftNETCoreApp, requestedVersion)
+                    .And.HaveStdErrContaining("The following frameworks for other architectures were found:");
+
+                // Error message should list framework found for other architectures
+                foreach ((string arch, string path) in installLocations)
+                {
+                    if (arch == TestContext.BuildArchitecture)
+                        continue;
+
+                    string expectedPath = System.Text.RegularExpressions.Regex.Escape(Path.Combine(path, "shared", MicrosoftNETCoreApp));
+                    result.Should()
+                        .HaveStdErrMatching($@"{arch}\s*{requestedVersion} at \[{expectedPath}\]", System.Text.RegularExpressions.RegexOptions.Multiline);
+                }
+            }
+        }
+
         private CommandResult RunTest(Func<RuntimeConfig, RuntimeConfig> runtimeConfig, bool? multiLevelLookup = true)
             => RunTest(new TestSettings().WithRuntimeConfigCustomizer(runtimeConfig), multiLevelLookup);
 

src/installer/tests/HostActivation.Tests/FrameworkResolution/RollForwardAndRollForwardOnNoCandidateFxSettings.cs

@@ -5,6 +5,8 @@
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class RollForwardAndRollForwardOnNoCandidateFxSettings :

src/installer/tests/HostActivation.Tests/FrameworkResolution/RollForwardMultipleFrameworks.cs

@@ -6,6 +6,8 @@
 using System;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class RollForwardMultipleFrameworks :

src/installer/tests/HostActivation.Tests/FrameworkResolution/RollForwardOnNoCandidateFx.cs

@@ -1,11 +1,13 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System;
 using Microsoft.DotNet.Cli.Build;
 using Microsoft.DotNet.Cli.Build.Framework;
-using System;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class RollForwardOnNoCandidateFx :

src/installer/tests/HostActivation.Tests/FrameworkResolution/RollForwardOnNoCandidateFxMultipleFrameworks.cs

@@ -6,6 +6,8 @@
 using System;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class RollForwardOnNoCandidateFxMultipleFrameworks :

src/installer/tests/HostActivation.Tests/FrameworkResolution/RollForwardOnNoCandidateFxSettings.cs

@@ -5,6 +5,8 @@
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class RollForwardOnNoCandidateFxSettings :

src/installer/tests/HostActivation.Tests/FrameworkResolution/RollForwardPreReleaseOnly.cs

@@ -5,6 +5,8 @@
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     /// <summary>

src/installer/tests/HostActivation.Tests/FrameworkResolution/RollForwardReleaseAndPreRelease.cs

@@ -5,6 +5,8 @@
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     /// <summary>

src/installer/tests/HostActivation.Tests/FrameworkResolution/RollForwardReleaseOnly.cs

@@ -5,6 +5,8 @@
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     /// <summary>

src/installer/tests/HostActivation.Tests/FrameworkResolution/RollForwardSettings.cs

@@ -5,6 +5,8 @@
 using Microsoft.DotNet.Cli.Build.Framework;
 using Xunit;
 
+using static Microsoft.DotNet.CoreSetup.Test.Constants;
+
 namespace Microsoft.DotNet.CoreSetup.Test.HostActivation.FrameworkResolution
 {
     public class RollForwardSettings :

src/installer/tests/TestUtils/Constants.cs

@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System;
+
 namespace Microsoft.DotNet.CoreSetup.Test
 {
     public static class Constants
@@ -82,8 +84,10 @@ public static class DisableGuiErrors
         public static class TestOnlyEnvironmentVariables
         {
             public const string DefaultInstallPath = "_DOTNET_TEST_DEFAULT_INSTALL_PATH";
-            public const string RegistryPath = "_DOTNET_TEST_REGISTRY_PATH";
             public const string GloballyRegisteredPath = "_DOTNET_TEST_GLOBALLY_REGISTERED_PATH";
+
+            public static string RegisteredConfigLocation = OperatingSystem.IsWindows() ? RegistryPath : InstallLocationPath;
+            public const string RegistryPath = "_DOTNET_TEST_REGISTRY_PATH";
             public const string InstallLocationPath = "_DOTNET_TEST_INSTALL_LOCATION_PATH";
         }
 

src/native/corehost/fxr/fx_resolver.cpp

@@ -540,7 +540,7 @@ StatusCode fx_resolver_t::resolve_frameworks_for_app(
                 _X("Architecture: %s"),
                 app_display_name,
                 get_current_arch_name());
-            display_missing_framework_error(resolution_failure.missing.get_fx_name(), resolution_failure.missing.get_fx_version(), pal::string_t(), dotnet_root, app_config.get_is_multilevel_lookup_disabled());
+            display_missing_framework_error(resolution_failure.missing.get_fx_name(), resolution_failure.missing.get_fx_version(), dotnet_root, app_config.get_is_multilevel_lookup_disabled());
             break;
         case StatusCode::FrameworkCompatFailure:
             display_incompatible_framework_error(resolution_failure.incompatible_higher.get_fx_version(), resolution_failure.incompatible_lower);

src/native/corehost/fxr/fx_resolver.h

@@ -64,7 +64,6 @@ class fx_resolver_t
     static void display_missing_framework_error(
         const pal::string_t& fx_name,
         const pal::string_t& fx_version,
-        const pal::string_t& fx_dir,
         const pal::string_t& dotnet_root,
         bool disable_multilevel_lookup);
     static void display_incompatible_framework_error(

src/native/corehost/fxr/fx_resolver.messages.cpp

@@ -3,6 +3,7 @@
 
 #include "fx_resolver.h"
 #include "framework_info.h"
+#include "install_info.h"
 
 /**
 * When the framework is referenced more than once in a non-compatible way, display detailed error message
@@ -92,23 +93,9 @@ void fx_resolver_t::display_summary_of_frameworks(
 void fx_resolver_t::display_missing_framework_error(
     const pal::string_t& fx_name,
     const pal::string_t& fx_version,
-    const pal::string_t& fx_dir,
     const pal::string_t& dotnet_root,
     bool disable_multilevel_lookup)
 {
-    std::vector<framework_info> framework_infos;
-    pal::string_t fx_ver_dirs;
-    if (fx_dir.length())
-    {
-        fx_ver_dirs = fx_dir;
-        framework_info::get_all_framework_infos(get_directory(fx_dir), fx_name.c_str(), disable_multilevel_lookup, &framework_infos);
-    }
-    else
-    {
-        fx_ver_dirs = dotnet_root;
-    }
-
-    framework_info::get_all_framework_infos(dotnet_root, fx_name.c_str(), disable_multilevel_lookup, &framework_infos);
 
     // Display the error message about missing FX.
     if (fx_version.length())
@@ -122,6 +109,8 @@ void fx_resolver_t::display_missing_framework_error(
 
     trace::error(_X(".NET location: %s\n"), dotnet_root.c_str());
 
+    std::vector<framework_info> framework_infos;
+    framework_info::get_all_framework_infos(dotnet_root, fx_name.c_str(), disable_multilevel_lookup, &framework_infos);
     if (framework_infos.size())
     {
         trace::error(_X("The following frameworks were found:"));
@@ -135,6 +124,30 @@ void fx_resolver_t::display_missing_framework_error(
         trace::error(_X("No frameworks were found."));
     }
 
+    std::vector<std::pair<pal::architecture, std::vector<framework_info>>> other_arch_framework_infos;
+    install_info::enumerate_other_architectures(
+        [&](pal::architecture arch, const pal::string_t& install_location, bool is_registered)
+        {
+            std::vector<framework_info> other_arch_infos;
+            framework_info::get_all_framework_infos(install_location, fx_name.c_str(), disable_multilevel_lookup, &other_arch_infos);
+            if (!other_arch_infos.empty())
+            {
+                other_arch_framework_infos.push_back(std::make_pair(arch, std::move(other_arch_infos)));
+            }
+        });
+    if (!other_arch_framework_infos.empty())
+    {
+        trace::error(_X("\nThe following frameworks for other architectures were found:"));
+        for (const auto& arch_info_pair : other_arch_framework_infos)
+        {
+            trace::error(_X("  %s"), get_arch_name(arch_info_pair.first));
+            for (const framework_info& info : arch_info_pair.second)
+            {
+                trace::error(_X("    %s at [%s]"), info.version.as_str().c_str(), info.path.c_str());
+            }
+        }
+    }
+
     pal::string_t url = get_download_url(fx_name.c_str(), fx_version.c_str());
     trace::error(
         _X("\n")

src/native/corehost/fxr/install_info.cpp

@@ -31,7 +31,7 @@ bool install_info::print_environment(const pal::char_t* leading_whitespace)
     return found_any;
 }
 
-bool install_info::print_other_architectures(const pal::char_t* leading_whitespace)
+bool install_info::enumerate_other_architectures(std::function<void(pal::architecture, const pal::string_t&, bool)> callback)
 {
     bool found_any = false;
     for (uint32_t i = 0; i < static_cast<uint32_t>(pal::architecture::__last); ++i)
@@ -47,13 +47,22 @@ bool install_info::print_other_architectures(const pal::char_t* leading_whitespa
         {
             found_any = true;
             remove_trailing_dir_separator(&install_location);
+            callback(arch, install_location, is_registered);
+        }
+    }
+
+    return found_any;
+}
+
+bool install_info::print_other_architectures(const pal::char_t* leading_whitespace)
+{
+    return enumerate_other_architectures(
+        [&](pal::architecture arch, const pal::string_t& install_location, bool is_registered)
+        {
             trace::println(_X("%s%-5s [%s]"), leading_whitespace, get_arch_name(arch), install_location.c_str());
             if (is_registered)
             {
                 trace::println(_X("%s  registered at [%s]"), leading_whitespace, pal::get_dotnet_self_registered_config_location(arch).c_str());
             }
-        }
-    }
-
-    return found_any;
+        });
 }

src/native/corehost/fxr/install_info.h

@@ -5,9 +5,11 @@
 #define __INSTALL_INFO_H__
 
 #include "pal.h"
+#include <functional>
 
 namespace install_info
 {
+    bool enumerate_other_architectures(std::function<void(pal::architecture, const pal::string_t&, bool)> callback);
     bool print_environment(const pal::char_t* leading_whitespace);
     bool print_other_architectures(const pal::char_t* leading_whitespace);
 };