Storyboard Compilation Failed. The folder StringsFiles.plist doesn't exist. Error in Xcode-8 Beta-3.

Is this just one storyboard file or are multiple storyboards failing to compile? Perhaps it might work to create a new storyboard file, move everything into it from the old file, then toss the old one and rename the new one to replace the old…

I had the same problem and found a solution.

First I tried many things like clean the project, delete derived data etc. but nothing works.

Than I get an hint at the end of the article from the attached link.

I just deleted my last added segue and the error disappears!

https://q-a-assistant.com/computer-internet-technology/2666533_xcode-storyboard-compile-error-stringsfiles-doesnand-39-t-exist.html