IOS project showing error “An internal error occurred. Editing functionality may be limited” on xcode 7.1

Question

I just created one new cordova ios project via CLI, and i opened that project in Xcode 7.1 and while running on simulator am getting some error on mainViewController.xib, if

Answer 1

I had this issue and clearing derived data folder fixed the issue for me

Preferences > Locations > Derived Data > click the arrow to open in Finder > trash it.