Invalid or expired dof handle

I’m a beginner.
When I ran the JetBot sample, it didn’t respond to the keyboard to move itself, and the console showed that “DcSetDofVelocityTarget: Invalid or expired dof handle”.
I wonder what’s wrong with it?

Hi Bipalium,

Please make sure you have the latest assets. I t seems that you have the old version of assets.

Kindly,
Liila

Hi,

Please take a look at this blog post and try this patch here.