I recently upgraded to Xcode 8 and I am having issues with the Storyboard.
If I open the project and I don\'t have the Storyboard open, it will compile and run just
my problem was solved by deleting folders (which is related to this project) from derived data folder. you can do this by clicking File -> Project Setting -> then click the arrow sign deside /Users/.../Xcode/DerivedData click DerivedData folder you will see your project named folders delete those . quit xcode the open your project , clean the project by using this step Product->clean then build the project : Product->Build These will resolve this problems .