Xcode:Task failed with exit 1 signal 0 {

The error message is as follows:
was the problem I encountered while trying to build apps and simulate them on my phone.

Solution: When prompted for a password in the key string, press always Allow, rather than simply allow.
If you are currently in this process, restart your computer, then open Xcode and simulate it on a common device, and you will be prompted to re-enter your password. Make sure that clicking is always allowed.

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