Socket Implementation error

I just updated to Unity 4.7 and PUN v1.65, and everything works except for the Photon Chat API. When it tries to connect, it instantly gives me this error:

Connect() failed, because SocketImplementation or socket was null. Set PhotonPeer.SocketImplementation before Connect().

It worked perfectly before updating to 1.65. I've been programming for some time now, but this is one of the road blocks I ask about. Any help would be much appreciated.