Im trying to deal with a facebook integration login for my simple android application. Im following this guide <https://developers.facebook.com/docs/getting-started/facebook-sdk-for-android/3.0/> and everthing seems to go fine, but am still gettin exception:
java.lang.NoClassDefFoundError: android.support.v4.content.LocalBroadcastManager

I know there are alot similar questions about this problem like this [java.lang.ClassNotFoundException after changing nothing in the project but upgrading eclipse android sdk](https://stackoverflow.com/questions/16636039/java-lang-classnotfoundexception-after-changing-nothing-in-the-project-but-upgra) 
that says that I must check all the checkboxes in java build path in Other and export tab but Ive done it already and am still getting the error.