net 6.0 throws NETSDK1005 error during build/publish via cmd as it does not accept the property "TargetFramework(s)"

[swetha-dran]

#19487 - Could not re-open this issue So I'm creating a new one.

Below is the my csproj file,

<PropertyGroup>
    <TargetFramework>netcoreapp3.1</TargetFramework>
  </PropertyGroup>

and running the below command fails,
dotnet publish "MY_TEST_APP_CSPROJ_PATH" -c Release -o "RELEASE_PROJ_PATH" -r win10-x64 /p:TargetFramework=net6.0

But, I can run the below command fine,
dotnet publish "MY_TEST_APP_CSPROJ_PATH" -c Release -o "RELEASE_PROJ_PATH" -r win10-x64 /p:TargetFramework=net5.0

To be clear, I can build totally fine with net 5.0, it fails only with net 6.0.

Note: As a workaround, I updated csproj to accept the variable (TF)
<TargetFramework>$(TF)</TargetFramework>
and running the below command works,
dotnet publish "MY_TEST_APP_CSPROJ_PATH" -c Release -o "RELEASE_PROJ_PATH" -r win10-x64 /p:TF=net6.0

[iskiselev]

Can #19487 be reopened and this been closed to discuss it in one place?

[marcpopMSFT]

Old bug triage: tracked in the other bug.