Please copy the jar file from your project to facebook sdk library and clean it. You have to use same jar for all your library projects and application projects. Because any library from github or any community will come with old andoird-support-v4.jar, better you replace all library project's support-v4.jar with your application project's support-v4.jar.
Then if you get any exclamation mark like please goto properties->javabuildpath->orderandexport select all checkboxes and remove the missing one...
I hope it will help you............