How to do use Assetbundle in Unet?

Unity will report a error on clent:Failed to spawn server object, assetId=631a3a5797c7eb5498b963afd0426076 netId=3
UnityEngine.Networking.NetworkIdentity:UNetStaticUpdate()

It is work well on host,but the asset id is “000000……”,and can`t spawn on the client;
How to do use Assetbundle in Unet?
How to do use Assetbundle for lobbyPlayerPrefab in UnetLobby?

Unity Editor has a bug I guess.
Build client and try same code in other platforms like PC, Android…
It will be works well asset id in NetworkIdentify component.