i can't paint my trees on terrain

Hello I’m on a project where I use terrain for the first time and I want to place some trees but have warnings like :

The tree '“ObjectName” couldn’t be instanced because the prefab contains no valid mesh renderer.

UnityEngine.GUIUtility:ProcessEvent (int,intptr,bool&) or

UnityEditor.EditorApplication:Internal_CallUpdateFunctions () or

UnityEditor.TerrainTreeContextMenus:EditTree (UnityEditor.MenuCommand)

(I don’t know if it’s useful to specify all function where warnings come from)

I’ve tried many things like Add mesh renderer component, put the 3D object in a parent empty object for set pivot but nothing change still I’ve the warning and I don’t find accurate solution for my case, I can place correctly my trees manually and by default my .FBX use Skinned Mesh Renderer I don’t know if it makes troubles so if someone can help me thanks.

Hello

It seems the tree mesh is corrupted, try download anotherone.