LoadPrefab - should start with assets/ -
ArgumentException: Invalid path
at System.IO.Path.GetDirectoryName (System.String path) [0x0000d] in :0
at Prefab..ctor (System.String name, UnityEngine.GameObject prefab, GameManager manager, PrefabAttribute+Library attribute) [0x00019] in :0
at Prefab.Load (System.UInt32 id, GameManager manager, PrefabAttribute+Library attribute) [0x00023] in :0
at World.Spawn (ProtoBuf.PrefabData prefab) [0x00000] in :0
at World+d__83.MoveNext () [0x000f4] in :0
at WorldSetup+d__15.MoveNext () [0x00622] in :0
at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00026] in :0