Getting a “This application is modifying the autolayout engine from a background thread” error?

Question

Been encountering this error a lot in my OS X using swift:

\"This application is modifying the autolayout engine from a background thread, which can

Answer 1

If you want to hunt this error, use the main thread checker pause on issues checkbox. Fixing it is easy most of the times, dispatching the problematic line in the main queue.