Nunit 3.0 & VisualStudio TestAdapter TestResult.xml missing

I made a test solution arround Nunit 3.0 and i use Visual Studio TestAdapter to start the tests. But it seems like the TestResult.xml usually generated by Nunit doesn't show up in my folders. Anyone knows where i can find these tests results?

note: If I run the test with a right click -> test with Nunit and press run i will find the TestResult.xml file under my bin/debug folder.

Thanks you