I just upgraded my support library from compile \'com.android.support:appcompat-v7:23.1.1\' from compile \'com.android.support:appcompat-v7:23.1.0\'. <
compile \'com.android.support:appcompat-v7:23.1.1\'
compile \'com.android.support:appcompat-v7:23.1.0\'
They changed the package slightly, removing the 'internal'. You just need to change your imports:
android.support.v7.internal.view.menu.MenuBuilder
to
android.support.v7.view.menu.MenuBuilder