RPC not being called

I have set up a server and a client, both only a main camera, both only 1 script. The client connects (this is successful, disconnecting after is shut down works as well, no network issues). This then calls the SERVERS RPC. Client uses:

 void OnConnectedToServer() {
         Debug.Log("Connected to server");
         MakeCall();
     }
     
     // Update is called once per frame
     void MakeCall () {
         networkView.RPC("DataRequest",RPCMode.Server,"test");
     }

And then the server has:

 [RPC]
 void DataRequest(string JsonCall, NetworkMessageInfo info){
     Debug.Log("Made a data request: " + info.sender);
 }

However, this setup results in one and the same error over and over:

 RPC call failed because the function 'DataRequest' does not exist in the any script attached to'Main Camera'

I am at a complete loss as to why this happens, since the script is running on the Main Camera object. Does anyone know what is going on?

Thanks in advance, Smiley