XCode5 can't install app on iOS simulator

Question

I successfully installed the app several times. Suddenly, I got this message "My App" exited unexpectedly, lost connection. This happens with iOS 6.x and 7 . I already tried deleting app manually from simulator, resetting, clean, quit, restart, everything ...

Any advice?

Answer 1

In the iOS Simulator menu, do "Reset Content & Settings". If that doesn't fix it, reboot your computer.