Xcode 6.3 is crashing on Project Rename

Question

I just updated my Xcode 6.3. I am getting an issue while project renaming. Is there any solution?

And in some case it is showing mymac instead of simulators or devic

Answer 1

I just did a small trick.

I changed the 'Product Name' in Build Settings and give new name. the rest happened by its own. that is the Xcode also renamed folder and files.