Getting “A valid signing identity matching this profile could not be found in your keychain” warning

Question

I hope to test my app on iPod Touch

I created development provisioning profile.

I dragged downloaded .mobileprovision file to Organizer

There is a ye

Answer 1

I had a working iPad provisioning profile installed with XCode 4, then added an iPhone and found that the newly downloaded provisioning profile wouldn't work with either device. Checking the certificate and the link in the keychain did not help for me.

Turns out that after re-adding my certificates, and trying to close and reopen xcode, I needed a reboot before I could add the provisioning profile back into xcode and make it happy. Perhaps there is some underlying problem about needing to refresh values cached by keychain in RAM?

It is possible it may have worked by just logging out and logging back in too.