The identity 'iPhone Developer' doesn't match any valid, non-expired certificate

hi, I am a novice developers want to debug what the real machine, but the occurrence of this problem has not been resolved, please know that children's shoes to help me

The identity 'iPhone Developer' doesn't match any valid, non-expired certificate / private key pair in your keychains


Reply:
Real machine must have a developer account Debugging
Reply:
I have a developer account; ipad at my computer above the others on a program compiled successfully, but I own the air above it is also how compilation is unsuccessful, because always prompt such as the title wrong;
Reply:
Your account was in someone else's computer installed? It was from that computer to re-export certificate, or to re-generate the certificate in the provisioning portal
Reply:

3rd floor darkdong reply quote:

your account in someone else's computer once installed? It was from that computer to re-export certificate, or go to provisioning portal where regenerate certificates

Thank you for my answer!

In someone else's computer to run off, but someone else's account is used to run; My mini on both computers are running successful, in my air does not succeed, others running on the computer, nothing configuration, directly on ok, depressed! Also, ask above two is not to be added by the administrator !

Certificates The administrator has added over;

Devices that my side did not show my ipad, but running a successful person's account which will have my ipad, do not know how it is!