"Actor::updateMassFromShapes" error?

I’ve imported a simple Unity 1.62 project into Unity 2.01 and got this error message that won’t clear:

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

How do I fix this?

This shows up when you attach a rigidbody to a mesh collider that is a plane or generally a shape that contains no volume.

Most likely you didn’t want to have a mesh collider attached to that rigidbody.

Fixed it, thanks!

This is an old post - but it solved a problem for me today. Thanks!!

could you tell me how you solved it? I have same problem as well. I have a plane and attached mesh collider to it. I can not use box collider as it is axis alligned which can not solve my problem. Thanks

Thanks!

This post helped me today!!!

I just removed the rigitbody component from the plain structure and the error is gone.

If the message is still there, then clear the error from the log, the problem may be fixed but the message sometimes doesn’t clean automatically

Thank you for documenting this problem.

Did this too, fixed the Problem. Thanks to the people in this thread :slight_smile: