iphone开发点滴－Could not launch app - No such file or directory

http://blog.csdn.net/doctorhsly/article/details/8517558

Could not launch app - No such file or directory

解决方法

1. Disconnect your device. （拔掉机器）
2. Delete the app from your device. （删除机器上的程序）
3. Quit xcode (Don't just simply close the window, quit it)（推出xcode，而不是关闭项目窗口） 
4. Delete derived data folder (~/Library/Developer/Xcode/DerivedData/-gbrvhlvwmpiobxdujegtghggrffp - or something like that) （删除电脑上对应的应用程序数据）
5. Now start Xcode, connect device and run the project. It should work fine.（重启xcode，连接机器，重新运行项目）