Xcode 8 Breakpoint in file not working

Question

I have one file,SignInViewController.swift, in my Xcode project that out of nowhere has begun not stopping on breakpoints. I have a breakpoint in viewDidL

Answer 1

What helped for me was deleting the file Breakpoints_v2.xcbkptlist which is located under the project directory (*.xcodeproj) in the directory: xcuserdata/Fred.xcuserdatad/xcdebugger (replace "Fred" with your username). Use a terminal program to go there.