DotCover in TeamCity 8 doesn't work

Question

I try to run dotCover with my NUnit tests, in the TeamCity 8 as a build step. But no metter what I try I always get the same error in the log file:

Step 4/4: Coverage (NUnit) (1s)
[Step 4/4] Starting: C:\TeamCity\buildAgent\plugins\dotnetPlugin\bin\JetBrains.BuildServer.NUnitLauncher.exe #TeamCityImplicit
[Step 4/4] in directory: C:\TeamCity\buildAgent\work\6aee0f0d2626793d
[Step 4/4] ##teamcity[importData type='dotNetCoverage' tool='dotcover' file='C:\TeamCity\buildAgent\temp\buildTmp\coverage_dotcover3226256377023598081.data']
[Step 4/4] Importing data from 'C:\TeamCity\buildAgent\temp\buildTmp\coverage_dotcover3226256377023598081.data' with 'dotNetCoverage' processor
[Step 4/4] Rejected coverage report file: C:\TeamCity\buildAgent\temp\buildTmp\coverage_dotcover3226256377023598081.data size: 0. File is empty or does not exist
[Step 4/4] Process exited with code -2146232576
[Step 4/4] Step Coverage (NUnit) failed

I have tried to use both the included in TeamCity dotCover and the separately installed one, but both are failing with the same error.

My configuration:

If I choose no coverage tool, the tests work fine on its own. But with dotCover selected I always get the same error.

Any help here would be much appreciated.

Answer 1

Check out: http://confluence.jetbrains.com/pages/viewpage.action?pageId=49448495

In the case of internal TeamCity DotCover, you have to add the "ALL APPLICATION PACKAGES" read access rights to the TeamCity installation folder. If using an external DotCover, add the rights there.

This corrected the issue for me, for now.