Estou usando o OpenCoverhttp://nuget.org/packages/opencover e escrevi o seguinte arquivo em lote para executar os testes de unidade e gerar estatísticas de cobertura de código:

echo off

echo ***************************
echo *** Running NUnit tests ***
echo ***************************
"..\packages\OpenCover.4.0.804\OpenCover.Console.exe" -register:user -target:"..\NUnit 2.6\bin\nunit-console-x86.exe" -targetargs:"..\Web.UnitTests\bin\Debug\Web.UnitTests.dll"  -output:coverage.xml

echo **************************************
echo *** Generating coverage statistics ***
echo **************************************
"..\packages\ReportGenerator.1.6.0.0\ReportGenerator.exe" "-reports:coverage.xml" "-targetdir:%CD%"

echo ***********************************
echo *** Launching Internet Explorer ***
echo ***********************************
start "C:\Program Files (x86)\Internet Explorer\iexplore.exe" "%CD%\Index.htm"

pause

No entanto, quando eu executo o arquivo em lote, recebo o erro:

Committing...
No results - no assemblies that matched the supplied filter were instrumented
    this could be due to missing PDBs for the assemblies that match the filter
    please review the output file and refer to the Usage guide (Usage.rtf)

Tenho certeza que eu fiz algo bobo / faltando algo óbvio, mas não sei o que!

Os arquivos PDB estão na pasta: ".. \ Web.UnitTests \ bin \ Debug \"

Aprecie qualquer ajuda,

Obrigado,