Xcode 6.4/7 crashing after El Capitan beta

Question

I updated my computer to the latest beta that was released to developers last night and the same project that was compiling fine yesterday night now fails due to a supposed

Answer 1

There is one weird fix :

Reinstall Beta 5 by downloading and running the following directly from Apple's CDN. This will restore Xcode but you will loose sound :)

http://swcdn.apple.com/content/downloads/43/22/031-29032/71ihp9c54k547fvol25w5g85z9323gqwnr/OSXUpd10.11.pkg

http://swcdn.apple.com/content/downloads/43/22/031-29032/71ihp9c54k547fvol25w5g85z9323gqwnr/FirmwareUpdate.pkg