I have started a new app a few days ago and began working with the simulator to test it. I started as an empty project and manually added the storyboard. The simulator build
I had my app working normally on the iPhone Simulator but strangely Xcode stopped responding and i had to Force Quit Xcode. When I restarted Xcode i encountered "Could not find a storyboard named MainStoryboard....",
I have fixed this issue by following below steps:
For some reason the file "MainStoryboard.storyboard" was not recognised after force quitting Xcode and following above steps made the app recognise the file back again.
Hope this solution helps..