Unexpected token '' at position 3 in selection expression
This looks like nonsense
"-targetargs:C:\Test\src\Example.Tests\bin\Debug\example.Tests.dl -filter:"+[Unit]*" Something like this should work better
"-targetargs:C:\Test\src\Example.Tests\bin\Debug\example.Tests.dll" -filter:"+[*Unit]*" I recommend you to try powershell intstead of batch files
Here is the sample script: https://github.com/rpokrovskij/opencover4vs.ps1
Put it to solution folder, modify first line , and I hope it will work for you, without additional changes.