Xcode storyboard: Internal error. Please file a bug

Question

While editing in the storyboard, specifically assigning a view controller to a specific class, I suddenly encountered this error when I wanted to run the project.

Ma

Answer 1

I had the same issue. Got it fixed using below steps :

1. Delete the derived data of your project

2. Clean your project (Shortcut : cmd + shift + k)

3. Now, run your app.