Xcode crash when creating a new project, I have tried the following solutions
defaults delete com.apple.dt.Xcode
The issue still exist while Xcode beta 5 works fine.
From known issues section of this document:
Creating new projects on OS X El Capitan requires developer beta 7 or later. (22263243)
I recommend you to update to the latest beta if possible, this will definitely solve the issue. But you can also create project with beta 5, then edit it using beta 6