I also have the same problem, but after upgrading My Mac OS X Yosemite to OS X EI Capitan this problem was resolved with a .tbd extension file with the same name.
In fact, Xcode 7 no longer has dynamic binary libraries (.dylib), and does not offer .tbd libraries, and I think this can be recognized by OS X EI Capitan and OS X EI Capitan supports .tbd support (file extension). which is not available in OS X Yosemite?
Thus, a project that has ( .dylib ) can only work in the lower version of Xcode 7.
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