the identity used to sign the executable is no longer valid.解决方法

Managed-by-Xcode provisioning profile that expired.

You are using a “Team Provisioning Profile” and it expired. You went to renew and download it, and noted “Managed by Xcode” and the “Renew” button was grayed out.

The solution: delete the profile from Organizer in Xcode, then at the top click “Refresh” (right by “Automatic Device Provisioning”). Organizer will fetch a new provisioning profile with a new expiration date.

Intuitive indeed.

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