RPC Error "Could't invoke RPC function..."

I received this error, which never happened before.

“Could’t invoke RPC function ‘ProcessCL’ because the networkView ‘SceneID: 2 Level Prefix: 0’ doesn’t exist”
View ID SceneID: 2 Level Prefix: 0 not found during lookup. Strange behaviour may occur

Could someone tell me if I’ve done/switched something wrong from within Unity?

Hello. NetworkView component should be attached to synchronized gameObjects in both applications and it should have the same ID in both scenas. Check it :slight_smile: Network Reference Guide

make sure you have “Run in Background” on client and server checked if you test on same machine… I got the error and it was from this I think…
Its under Build Settings → Player Settings