Omnigraffle not opening xcodeproj file

Question

I am trying to generate a uml diagram of a current project I just inherited. I have seen several places that referenced omnigraffle as the best tool for this as it has been said that I can just drag my.xcodeproject file onto the icon. However, I get the following popup message:

"The document “tangott.xcodeproj” could not be opened. This framework or project does not contain any Objective-C interfaces. OmniGraffle only diagrams class hierarchies in Objective-C."

Is this still possible? I have OS 10.7.3 and the latest version of Omnigraffle. If not, is there another way I can do this?

Answer 1

I think you should check "File->Open->Select your Xcode folder " instead " File->Open->Select your XcodeProject file". It means: dragging its (.xcodeproj) containing folder onto the OmniGraffle application icon

Best luck for you,