recently without any direct changes to tests solution this error started occurring during execution of VSTEST@2 task on my azure pipeline.
##[warning]DiscoveryMessage : Failed to load extensions from file 'D:\a\1\s\src\...\NUnit3.TestAdapter.dll'. Please use /diag for more information.
It isn't breaking tests discovery or execuction phase but it trashes my warning dialog and might make me omit some more important warnings. Have any of you faced similar problem so far? Tried to look for such error for some time now and couldn't find any solution.
Also I thought that maybe my vstest task tries to discover tests from TestAdapter but it shouldn't be the case with excluding clauses in definition
- task: VSTest@2
inputs:
testSelector: 'testAssemblies'
testAssemblyVer2: |
**\*.Tests.dll
!**\*TestAdapter.dll
!**\NUnit3.TestAdapter.dll
!**\obj\**
searchFolder: '$(System.DefaultWorkingDirectory)'
distributionBatchType: basedOnExecutionTime
codeCoverageEnabled: true