Behavior trees basic don't move Help me please

Hi,

Im noob with UE4 and i want to do this AI basic:

https://docs.unrealengine.com/latest/INT/Gameplay/AI/index.html

But the AI character dont move… without error log,

exept this:

6 days lost for this, please help me! :frowning:

If you want more details or pictures, i can

PS: im french and speak english is very difficult for me :slight_smile: