Facing error using NetworkedAvatar (38.0.1) with Custom Matchmaking

I am facing an error when adding [Multiplayer Block] NetworkedAvatar (ver. 38.0.1) into the scene. The error is associated with a script which seems to be missing from package. The error is triggered in AvatarEntitiy.cs (line 173).

var animationBehavior = GetComponent<OvrAvatarAnimationBehavior>();
animationBehavior.enabled = true;

I also tried installing 35.2.0 but getting other errors. I believe the AvatarEntity code is built on some older version of AvatarSDK which earlier had class OvrAvatarAnimationBehaviour.