Import .Blend error/ crash fbx animations

Unity Engine
1

when i export model from blender with skielet to fbx unity 3D rescale skielet and destroy animation, so i decide to import .blend file, then it be next error

Blender could not convert the .blend file to FBX file.
You need to use Blender 2.45 or higher for direct Blender import to work.
UnityEditorInternal.InternalEditorUtility:ProjectWindowDrag(HierarchyProperty, Boolean)
UnityEditor.DockArea:OnGUI()

im using both unity and blender 2.64 on mac

2

Could you not export as a obj file they work very well as a pipeline between blender and unity

3

obj export only mesh, when i want try add animations its dont work