Facebook SDK: Unable to get provider com.facebook.FacebookContentProvider

I downloaded Facebook SDK for unity, followed facebook’s guide and built the example project. If I just click “Build and Run” everything works fine. But if I click Export Google Android Project and import it into eclipse, it gives me the following error, when I try to run it:

 java.lang.RuntimeException: Unable to get provider com.facebook.FacebookContentProvider: java.lang.ClassNotFoundException: Didn't find class "com.facebook.FacebookContentProvider" on path: DexPathList[[zip file "/data/app/com.company.myapp-1/base.apk"],nativeLibraryDirectories=[/data/app/com.company.myapp-1/lib/arm, /vendor/lib, /system/lib]]

Unity version: 5.0.1p3
Facebook SDK ver: v2.4

UPDATE:
I reported this as a bug to facebook, and they verified it: Log into Facebook

UPDATE2:
Facebook replied to me, that eclipse in no longer supported and I should use Android Studio to integrate the plugin.

This is probably because you need to import the facebook content provider plugin in Eclipse as well. Eclipse does not know where to search for the class com.facebook.FacebookContentProvider.

You should also check AndroidManifest.xml file for dependencies whether they have reference to this class.