Getting Back into Unity after a break and getting errors. error CS0115: 'OVRSkeletonMapping.GetRoot

Brand new computer,  Latest version of Unity.   Just downloaded the Meta All in one and got errors out of the gate.  lol.  Already frustrated and I haven't even started. 

Anyways.  Here are the 2 errors.  I've done all the recommended updates when you click on oculus icon.  etc. 

error CS0115: 'OVRSkeletonMapping.GetRoot()': no suitable method found to override

error CS0115: 'OVRSkeletonMapping.GetJointMapping()': no suitable method found to override

Any ideas guys? I'd like to actually get started making something.