xcode6 Command /usr/bin/codesign failed with exit code 1

http://stackoverflow.com/questions/26009981/why-am-i-getting-the-error-command-usr-bin-codesign-failed-with-exit-code-1-i

解决办法：

How about this: Try Xcode -> Preferences -> Accounts -> Choose your account, and then View Details -> Refresh (button on bottom left), Refresh again, restart XCode. Sounds like voodoo but it works for me and my team! (Posting it as answer, because it DOES work, at least sometimes and for some people. Possibly related to the weather ;) )