MoveToActor Failed to find a path

Hello everyone !

I’m trying to follow a course about tanks in a game and when I call MoveToActor() from AIController class, the AI doesn’t move at all…
I used the Visual Logger it says “trying to find path to (player tank name) resulted an error”.
inside the tank_bp, I made all “can affect navigation” for all the static meshes to false (no tick)
also I re added the tanks and still not working.
Also, my terrain has green color when I added nav mesh volume…
What can I do now ?

Thanks in advance

Solved doing the previous steps with deleting and readding the nav mesh