I had the exact same problem and thank you Sreejith for posting your question - you saved my bacon. I finally found the "Gather coverage for..." setting in the Test section of the target Scheme. Be sure to review all of the schemes for all of your targets. As a sanity check, there was this: codeCoverageEnabled = "YES"> in a TestAction element in Project.xcodeproj/xcshareddata/xcschemes/Project.xcscheme. Fixing the "Gather coverage" setting removed that line. IHTH.