When I run my tests I get an error:
Code coverage data generation failed.
Unable to retrieve the profile data files from \'UIDevice\'.
If you are integrating your project with a 3rd party dynamic framework, you may need to add a path in your build settings. Look for ->Build Settings->"Runpath search paths" and make sure it includes the path to the framework.
I was just seeing this exact issue myself after setting up my a project to use a framework my team has been working on. After updating this specific setting, the problem went away. In my case, the path was identical to one I already had to set for the "Framework search paths" setting.