Got this error and I'm not sure what's the problem I haven't touched this project in a few weeks, any help is appreciated...
check here for the images http://s24.postimg.org/nmsnnsxol/Screen_Shot_2014_04_03_at_21_50_32.png http://s21.postimg.org/jmfzvludj/Screen_Shot_2014_04_03_at_21_50_55.png
Your library search paths are not proper and that is why the warnings are there Directory not Found.
Since it cant find the directory the compilation fails as the classes are not available.
Go to Build Settings - Library Paths and make sure your paths are proper based on your project directory. There should not be jumbled \ strings in it.
