Xcode: Build Failed, but no error messages

Question

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

Answer 1

Click the last icon in the top bar of the left most panel in your Xcode window to reveal the secret Archive build errors.

It will likely be something related to code signing if you are able to build and run the app, but not Archive. Further googling of your error message should resolve that now that it has been revealed.