Have you tried editing source code of the storyboard file? Open as source code and then search for the class or object that's causing the error and removed its entry together with its associated tags. Then rebuild your project. I have encountered this problem countless of times working in interface builder and by editing the xib the vast majority of the time I could solve this problem.
Leggendario12
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
From
Canada