Current Bloc or Brick bleedingEdge or development, can not be loaded in

Pharo 5 :

This package depends on the following classes:
�� BlMorphicCompatibleBlocSpace
You must resolve these dependencies before you will be able to load these definitions:
�� BlOSWindowMorphicCompatibleBlocSpace
�� BlOSWindowMorphicCompatibleBlocSpace>>#defaultRootMorph
�� BlOSWindowMorphicCompatibleBlocSpace>>#redraw