Using Xcode 4.5.1. Our project has been building fine for the last three months, but suddenly, when I try to build, it says \"Build failed\", but does not show any errors on the
Faced same issue with xCode 8 the reason was that my Apple Id session expired and xCode was not able to renew it because of network connection problems once i signed in with my Apple id in preferences. I was able to build normally again