问题
I can't run my program anymore in simulator or on iPhone.
It compiles just fine. No issue. But then I got the message
Waiting for to launch
It happens forever.

This happen only in one project.
回答1:
Check which provisioning you are using, it seems that ad-hoc provisioning cannot be used for debbuging. If your problem is not save with above instruction then also try these:
- Stop the app from running in Xcode.
- Delete the app from the device (or Simulator).
- Select Product > Clean from the Xcode menu.
- Close Xcode.
- Close the Simulator (or restart the device).
- Restart your computer & then check.
Hope this will Help.
回答2:
I, finally got this thing solved by using backup of xproj file
The problem is in xproj file. However, I don't know what.
I am still waiting for better answers.
来源:https://stackoverflow.com/questions/16035689/waiting-for-appname-to-launch-forever