Unit Test fails in Xcode 8

Question

I get this error message every time I run my unit tests in Xcode 8

Validation for xctestrun file failed: (     "For these test runs, UITargetAppPath should be provided" ) 

Answer 1

Go to each of your test targets (e.g. MyProjectTests and MyProjectUITests) in the project settings and select "None" for the "Target Application" dropdown. Then reselect your Target Application back for the same targets. This should reset the test targets and make XCode less confused.