Unsupported enum type 'UnityEngine.Networking.Types.NetworkID'

Every time I use the NetworkID enum type in any C# script (namespace UnityEngine.Networking.Types), my console is flooded with the following error:
Unsupported enum type 'UnityEngine.Networking.Types.NetworkID' used for field '<variable name>' in class '<class name>'

It does not seem to interfere with any functionality, but it clutters the console. Is there a way around it?