Hi,
i use blender to export this animated model:
but when i load it with the following code:
model = Actor('animation.egg')only the cube is loaded:
how can i fix that?
You need to select the cube as well before exporting.
Also, I see the cube is parented to the armature - use the armature modifier instead.
yes yes, it’s selected
armature modifier? késako?
but this doesn’t exaplain why the sphere isn’t loaded 
up
if i don’t reparent the cube to my armature, how can i do an animation?
Use the Armature Modifier instead.
The Chicken manual explains it all, I think.
what kind of chicken exporter do you got? in the scripts dropdown you should have “Chicken R71c (.egg)” not what I see in the picture
plus, you haven’t to select the armature while exporting your mesh, just the mesh with applied the armature modifier, as pro_r said.