Problem with the "Test explorer" pane in Visual Studio 2017 RC

[Yves57]

Steps to reproduce

• Create a new Console Application
• Add a new "XUnit test" project
• Edit the test project, and change the "target Framework" to "netcoreapp1.1" and the version of "Microsoft.NETCore.App" to "1.1.0"
  You will have the following the CSPROJ

<Project Sdk="Microsoft.NET.Sdk" ToolsVersion="15.0">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp1.1</TargetFramework>
  </PropertyGroup>
  <ItemGroup>
    <Compile Include="**\*.cs" />
    <EmbeddedResource Include="**\*.resx" />
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.NETCore.App" Version="1.1.0" />
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0-preview-20161123-03" />
    <PackageReference Include="xunit" Version="2.2.0-beta4-build3444" />
    <PackageReference Include="xunit.runner.visualstudio" Version="2.2.0-beta4-build1194" />
  </ItemGroup>
</Project>

• In Visual Studio 2017 RC, show the "Test Explorer" pane. The unit test is visible. Nice!
• Change the "Microsoft.NETCore.App" version to "1.2.0-*", and build the solution.

Expected behavior

The unit test is still visible in the "Test Explorer" pane

Actual behavior

The "Test Explorer" pane is searching a long time, and finally find no unit test anymore.
Please note that running "dotnet test -lt" with version "1.2.0-*" takes a long time, with the following warning and error on proxy connection:

If I run "dotnet test -lt" with version "1.1.0", I have the same warning but it succeed immediatly.

Environment data

dotnet --info output:

.NET Command Line Tools (1.0.0-preview4-004233)

Product Information:
 Version:            1.0.0-preview4-004233
 Commit SHA-1 hash:  8cec61c6f7

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.14393
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Users\Yves\AppData\Local\Microsoft\dotnet\sdk\1.0.0-preview4-004233

[TheRealPiotrP]

@dotnet/vstest can you take a look?

[Yves57]

I should precise that everything was working fine maybe 15 days ago.
I was playing with the ASP.NET Razor solution (I have even made PRs that have been accepted). I suppose (but I'm not sure!) that a rebase and package update has broken something.

[Yves57]

Information about the warning conflict (taken from my Razor solution, which have the same problem as explained above). Maybe it could help you:

5>        Dependency "Microsoft.Extensions.DependencyModel, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60".
5>            Could not resolve this reference. Could not locate the assembly "Microsoft.Extensions.DependencyModel, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.
5>                For SearchPath "C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5".
5>                Considered "C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5\Microsoft.Extensions.DependencyModel.winmd", but it didn't exist.
5>                Considered "C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5\Microsoft.Extensions.DependencyModel.dll", but it didn't exist.
5>                Considered "C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5\Microsoft.Extensions.DependencyModel.exe", but it didn't exist.
5>                For SearchPath "{CandidateAssemblyFiles}".
5>                Considered "C:\Users\Yves\.nuget\packages\xunit.runner.visualstudio\2.2.0-beta4-build1194\build\netcoreapp1.0\xunit.runner.visualstudio.dotnetcore.testadapter.dll",
5>        			but its name "xunit.runner.visualstudio.dotnetcore.testadapter"
5>        			didn't match the expected name "Microsoft.Extensions.DependencyModel, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60".
5>                Considered "C:\Users\Yves\.nuget\packages\xunit.runner.visualstudio\2.2.0-beta4-build1194\build\netcoreapp1.0\xunit.runner.utility.dotnet.dll",
5>        			but its name "xunit.runner.utility.dotnet"
5>        			didn't match the expected name "Microsoft.Extensions.DependencyModel, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60".
5>                Considered "C:\Users\Yves\.nuget\packages\microsoft.diasymreader.native\1.4.0\build\\..\runtimes\win\native\Microsoft.DiaSymReader.Native.x86.dll",
5>        			but its name "Microsoft.DiaSymReader.Native.x86"
5>        			didn't match the expected name "Microsoft.Extensions.DependencyModel, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60".
5>                Considered "C:\Users\Yves\.nuget\packages\microsoft.diasymreader.native\1.4.0\build\\..\runtimes\win\native\Microsoft.DiaSymReader.Native.amd64.dll",
5>        			but its name "Microsoft.DiaSymReader.Native.amd64"
5>        			didn't match the expected name "Microsoft.Extensions.DependencyModel, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60".
5>            Required by "C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5\testhost.dll".
5>            Required by "C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5\Microsoft.TestPlatform.CrossPlatEngine.dll".
5>        There was a conflict between "Microsoft.Extensions.DependencyModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60" and "Microsoft.Extensions.DependencyModel, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60".
5>            "Microsoft.Extensions.DependencyModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60" was chosen because it was primary and "Microsoft.Extensions.DependencyModel, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60" was not.
5>            References which depend on "Microsoft.Extensions.DependencyModel, Version=1.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60" [C:\Users\Yves\.nuget\packages\microsoft.extensions.dependencymodel\1.0.0\lib\netstandard1.6\Microsoft.Extensions.DependencyModel.dll].
5>                C:\Users\Yves\.nuget\packages\microsoft.extensions.dependencymodel\1.0.0\lib\netstandard1.6\Microsoft.Extensions.DependencyModel.dll
5>                  Project file item includes which caused reference "C:\Users\Yves\.nuget\packages\microsoft.extensions.dependencymodel\1.0.0\lib\netstandard1.6\Microsoft.Extensions.DependencyModel.dll".
5>                    C:\Users\Yves\.nuget\packages\microsoft.extensions.dependencymodel\1.0.0\lib\netstandard1.6\Microsoft.Extensions.DependencyModel.dll
5>            References which depend on "Microsoft.Extensions.DependencyModel, Version=1.0.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60" [].
5>                C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5\Microsoft.TestPlatform.CrossPlatEngine.dll
5>                  Project file item includes which caused reference "C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5\Microsoft.TestPlatform.CrossPlatEngine.dll".
5>                    C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5\testhost.dll
5>                    C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost\15.0.0-preview-20161123-03\lib\netstandard1.5\Microsoft.TestPlatform.CrossPlatEngine.dll
5>        C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(1909,5): warning MSB3277: Found conflicts between different versions of the same dependent assembly that could not be resolved.  These reference conflicts are listed in the build log when log verbosity is set to detailed.

[pvlakshm]

@Yves57 can you confirm if netcoreapp1.2 shared runtime is installed on the machine? If it is installed and tests are not getting discovered, please share the diagnostic log.

Run dotnet test -d:log.txt and attach log.txt.

[Yves57]

@pvlakshm
The C:\Program Files\dotnet\shared\Microsoft.NETCore.App directory contains only 1.0.0, 1.01, 1.1.0 versions.
But the C:\Users\Yves\AppData\Local\Microsoft\dotnet\shared\Microsoft.NETCore.App contains 1.0.1, 1.1.0 and 1.2.0-beta-001202-00 versions.

And here are the "dotnet test -d:log.txt". As for the "Test Explorer" panel, it took a long time to run.

And the Log file...
log.txt

Little additional information: in my PATH environment variable, C:\Users\Yves\AppData\Local\Microsoft\dotnet is set before C:\Program Files\dotnet\

[codito]

Thanks @Yves57. Can you please share output of following command:

> C:\Users\Yves\AppData\Local\Microsoft\dotnet\dotnet.exe exec --runtimeconfig "C:\Users\Yves\Documents\Visual Studio 2017\Projects\ConsoleApp1\XUnitTestProject1\bin\Debug\netcoreapp1.1\XUnitTestProject1.runtimeconfig.json" --depsfile "C:\Users\Yves\Documents\Visual Studio 2017\Projects\ConsoleApp1\XUnitTestProject1\bin\Debug\netcoreapp1.1\XUnitTestProject1.deps.json" "C:\Users\Yves\.nuget\packages\microsoft.testplatform.testhost/15.0.0-preview-20161123-03\lib/netstandard1.5/testhost.dll" --port 60614 --parentprocessid 320 --diag log.host.170105061316.txt

[Yves57]

@codito
I have an error (Microsoft.NETCore.App version 1.2.0-beta-001269-00' not found because only 1.0.1, 1.1.0 and 1.2.0-beta-001202.00 are installed).
It indicates that I can install it. How to do that?

[Yves57]

@codito @pvlakshm
Problem fixed with the installation of the Beta 1269. I don't know why my computer was in this state.

It should be nice to have better error messages if possible. In any case thank you for your help!
I let you close the issue if you think that you have no other thing to improve.

[codito]

It should be nice to have better error messages if possible.

+1. We're tracking this in a separate issue.

[MurtuzaTravadi]

@codito

can plz take loot at my issue

dotnet/cli#7491

Process finished with non-zero exit code
dotnet/cli#7491 opened 2 hours ago by MurtuzaTravadi

[rodchenkov]

Hi All

I have the same issue.
@Yves57
Problem fixed with the installation of the Beta 1269.

Can you please help with with install it? I don't understand how to do this.

[codito]

@rodchenkov here are steps to troubleshoot this error:

• Run dotnet test -d:log.txt
• In the log.txt file generated, find the command line of dotnet exe invocation (search for exec or `dotnet)
• Copy the command line and run it directly in command prompt
• You will see an error message on which shared runtime version is missing. Install it from https://www.microsoft.com/net/download/core#/runtime

We're making it easier to diagnose these failures in microsoft/vstest#281