Blender Animation in Unity Problem

Unity v. 4.3.4 Blender v. 2.7 Windows

Hello,

I was surfing through different Forums now, but none of the answers helped me out.

I modelled a little windmill and i made one simple animation where the blades rotate (just 3 Keyframes in Blender). Then I exported it via fbx into unity. Settings like recommended: Mesh, All Actions, Animations, no default take. I get the message in unity "No animation data available in this model"

So I looked around what others did... Doing it with the action editor with set up a name, click on F... did not work...

The only thing is, when I export with default take, the animation do not work ingame but i see it in preview of the model´s inspector...

can someone help what i do wrong?