When I attempt to drag a UIButton to my ViewController.m (control + drag), Xcode crashes. I have tried unchecking the "Use Autolayout" box, but I am still having the same issue. I am using OS X 10.9.4 and Xcode 5.1.1. Any ideas?
That sounds awful and it should not be happening. However, there is an easy solution: do not do that. Control-dragging from the Interface Builder canvas to your code is completely unnecessary; you can do everything you need to entirely by working in the code and in IB separately.
I realize that for you this is not a solution ("why am I crashing?") but rather a workaround, but it's a perfectly good workaround and will allow you to move on with your work.