Command /usr/bin/codesign failed with exit code 1

Question

I have the following error:

Command /usr/bin/codesign failed with exit code 1

Here is what I already did for trying to fix this:

Answer 1

What worked for me was to realize that Xcode did not have access to the certificates. Please check that your certs are accessible by Xcode. Go to Keychain Access -> Certificates -> Open the Cert and double click on the private key -> Select Access Control