**The identity used to sign the executable is no longer valid.**
Please verify that your device’s clock is properly set, and that your signing certificate is not expired.
最近两天,我在使用Xcode设备在iPhone上构建我的应用时遇到了这个错误。之前它一直运行正常。但只有在该iPhone上构建时出现问题,其他iOS设备正常,唉。请帮帮我 :(