skeletons are not compatible in animationblueprint...

I am following a tutorial of Matt Aspland on animal ai at 6th minute Setting Up The Basic Movement | Part 1 Of Creating An Animal AI In Unreal Engine 4 - YouTube
Matt Aspland version

he created animation blendspace and imported it in animation state.

i did the exact same thing but got this error “skeletons are not compatible”.
(I am using free animal variety pack from marketplace)
My Version

I was using wrong skeletal mesh.
Wolf mesh instead of fox mesh.(animations are for fox mesh)
Sorry I’m new to unreal so got confused a little.