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

After crashing, the extension "xcodeproj" disappears. So what you need is to add the extension. After opening project, all targets gone. You need to remove current scheme (Manage Schemes>Delete"), then add a new scheme with proper name. In my case, it works.