Codesign error: Certificate identity appearing twice

Question

CodeSign error: Certificate identity \'iPhone Developer: XXXX (12345678)\' appears more than once in the keychain. The codesign tool requires there only be one.

So I

Answer 1

I was dealing with same problem once. And I have solved it by removing unused provisioning profile from Organizer tab in xcode. Actually Keychain will get that certificate from this provisioning profile which is either expired certificate or the build by revoked certificate.

So you just have to delete this provisioning profile from Organizer tab. Organizer is on right-top side button of xcode Open it and than in Organizer remove the provisioning profiles that you don't using.

Here is the screenshot,

And don't forget to remove extra certificate from the keychain but after that those certificate does not appear again.