Couldn't run tests after updating TestFramework in NuGet

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An exception occurred while invoking executor 'executor://mstestadapter/v2': Constructor on type 'Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.Execution.UnitTestRunner' not found.

2 Answers

I had the same problem while running tests in the build server.

I tried below things and it started working:

  • updated my projects to point to latest MSTest.TestAdapter and MSTest.TestFramework
  • cleared old versions of MSTest.TestAdapter and MSTest.TestFramework folders from build server under this paths

    C:\Users\.nuget\packages\MSTest.TestAdapter C:\Users\.nuget\packages\MSTest.TestFramework

  • I cleared the source files in the build once(not sure about this step but worth trying just in case)

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