help with error message...

Getting the following error message when importing a model…any ideas what could be issue. I have been adding models all day, all created with 3ds max, no issues. Then on last model I get this. Tried different model and same message…appears to be a problem with unity not model…

Error Message:

Actor::updateMassFromShapes: Compute mesh inertia tensor failed for one of the actor’s mesh shapes! Please change mesh geometry or supply a tensor manually!

You can’t use a rigidbody with an open mesh collider.

–Eric

thanks, not sure how that happened, but thanks!!

“generate colliders” was ticked on import…oops, thanks!!