Code Sign error: Certificate identity 'iPhone Developer: My Name (xxx)' appears more than once in the keychain

Question

I m stuck with this error:

Code Sign error: Certificate identity \'iPhone Developer: My Name (xxx)\' appears more than once in the keychain. The codesign tool requir

Answer 1

If you already deleted all other Developer Certificates in your KeyChain and the Error is still coming up, then try to delete all old/unused keys (private key) with your name. The one that's necessary, is the one with the little "folder-enhancer-icon" next to its name. Keeping this and deleting the rest fixed it for me.