【iOS】Unlock iPhone to Continue Xcode cannot launch demo1_greating on iPhone because the device is locked.

%e6%89%8b%e6%9c%ba%e6%9c%aa%e8%a7%a3%e9%94%81错误信息为:

Unlock iPhone to Continue
Xcode cannot launch demo1_greating on iPhone because the device is locked.

原因是手机使用USB连接后屏幕未解锁导致的。。。