I am trying to follow the Quadruped tutorial that is on the houdini site. I have apprentice. I was able to open the first file called start_file.hip and went through the first video.

As I started the second video it said to open armature_done.hip. I do that and get the following error:



I get that same error when I try to open the 3rd file which is autorig_done.hip.

Can someone tell me why this is and help me get a fix so I can complete the tutorials?