How do I fix these Apple Mach-O Linker Errors?

Question

I'm using Xcode 4.5. After trying to build an app I've just started on, I got the following Apple Mach-O Linker Error messages.

What does this mean and how can I fix it?

Answer 1

To fix the first two errors, add the AdSupport and CoreLocation frameworks to your "Link with Binaries" build phase.

The last error is probably caused by you not including all your .m files in the "Compile Sources" build phase - the missing one is likely called GHHaiku.m.