Jenkins NUnit report file not found

I run my NUnit tests on Jenkins but every time build step fails and i get this text:

Recording NUnit tests results FATAL: No NUnit test report files were found. Configuration error? Build step 'Publish NUnit test result report' marked build as failure Archiving artifacts Finished: FAILURE

It is actually caused by tests report files that cannot be found.

I added "Publish Nunit test result report" post-build action: "%WORKSPACE%\TestResults*.xml"

however jenkins cannot find it.

I checked if report file is created in my workspace and actually it is created in proper place so there should not be problem to read it.

Anyone knows how to solve this problem? I would be grateful for any help.