I just installed dotCover 2.5 and tried to cover my unit tests. In the coverage result Unfortunately this does not work. In the coverage tab there is only the message "Coverage analysis failed. Can´t get real file name (system error 2 - Das System kann die angegebene Datei nicht finden.)." on all tests.
The dotCover Test Runner and the Resharper Test runnerhave both the same result.
The environment is VS 2012 Update 4 with Resharper 8.0.2 C# Edition.