Load model from custom model pipeline?

Hi everyone.

Is there any method to load the model which is compiled by custom model pipeline?

I try to load a model coming from “CustomModelClassSample_4_0”(download here), a tank.xnb, but it always pop the runtime error “Could not load tank asset as a non-content file!”

I am sure that i copy the tank.xnb to correct location, because I put another model.xnb in the same location, and it is fine to load, no error message.

I’ve uploaded the project code here, problem project.
If anyone knows what’s going on, please help me to solve this, thank you.