The prompt is damaged, please see here for removal to the trash: Macbook version is lower than macOS 10.12 Please set the "Any Source" option directly in System Preferences -> Security and Privacy
If macOS 10.12 Sierra finds that there is no "any source" option, you need to enter: sudo spctl --master-disable in the terminal, press Enter, and enter the password to see it.
Please don't ask friends who encounter this situation, thank you
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