Codesign error: Certificate identity appearing twi

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 go to my keychain and delete it. But I get this error every time I restart Xcode 4 and some app is adding the expired old certificate back into keychain. Any ideas why and which app?

Answer 1

If you are a member of the iOS Developer and Enterprise iOS Developer programs and you entered your company name in the same for both applications, you will end up with two valid distribution certificates with the same name.

I believe this question addresses that situation: CodeSign collisions between Developer and Enterprise Distribution

Answer 2

I had this problem and read every piece of information about it, finally I've found the solution on my own. What people failed to mention is that BEFORE cleaning the certificates in Xcode organizer and BEFORE cleaning the expired keys in your keychain you need to make sure that you don't have any expired certificates in the Provisioning Portal. If you'll have even one expired certificate for an old app that used the old Developer certificate Xcode will pull that into its organizer with first build and from there it will go to your keychain and will cause a duplicate.

Answer 3

In my case deleting the certificates didnt work. XCode 4 seems to cache or restore them. The trick that finally worked for me was to have keychain and xcode running. Then in keychain drag my 2 certificates (dev+dist) from 'login' to 'system'. Then the duplicates magically reappeared and i was able to delete them, and then i dragged the certificates back to 'login'