I also got hit by this issue, even after re-installing Apple's root certificates.
My workaround is to delete my development certificate from the keychain, download it from the developer web site, and re-install it.
The developer certificate will then be trusted for the remainder of the day.
However, the next morning it is not trusted again!
So I have to apply this workaround every morning... Huh?
What's the proper fix?
Topic:
Code Signing
SubTopic:
Certificates, Identifiers & Profiles
Tags: