Just installed 10.12 and Xcode 8 codesign
command fails even from terminal with A cryptographic verification failure has occurred.
and no further details. Any solutions?
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Did you try reinstalling the command line tools from the Developer portal? – JAL Jun 14 '16 at 06:12
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I did, no luck. Even reinstalled Xcode – Marcus Jun 14 '16 at 14:55
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I'm having the same problem on a new project. – hephaestuz Jun 14 '16 at 16:12
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@MaximeAubaret Good to know its not just isolated, I mean it sucks but you know. Please let me know if you find a solution – Marcus Jun 14 '16 at 17:47
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Same problem here... – Robin Jun 20 '16 at 05:39
1 Answers
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This Chinese website helps me to solve that issue.
Launch "Keychain Access", go to "Preferences..." and click "Reset My Default Keychain". After that I was finally able to build my projects.

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This worked for me. At least until I copied my passwords back so that I could continue to use them, and then it started bombing out again. So somehow some password in my keychain must be causing it, but I haven't quite figured out which one yet. – Hakanai Oct 11 '16 at 01:00