MVC Support - Example needed for integrating GraphicsMill into MVC5 application

We bought GraphicsMill on the understanding that it would work in MVC5 environments. Specifically, we are interested in the CanvasViewer.

However, we're not having much success in integrating it in the environment. Currently, we're making use of a partial view which loads GraphicsMill from an ascx controller.

Graphicsmill does load, but we're having trouble doing certain operations:

e.g. Trying to insert a PlainTextVObject into a view results in this error:

Uncaught TypeError: Cannot read property 'UpdateByPlainTextVObjectData' of undefined

When we tried delving deeper into this issue, it looks like a problem in this code:

var call = Function.createDelegate(this, function () {
	        var canvas = this.get_canvas();
	        if (canvas != null && canvas.get_isInitialized()) {
	            var args = [canvas.get_data(true)];
	            if (data != null)
	                args = args.concat(data);
	            args = args.concat(onSuccess, onFailure);

	            this._isCallingService = true;
	            var service = this.ns.Service;
	            service[methodName].apply(service, args);
	        }
	    });

this.ns.Service is null.

Please advise - also it would be great help if you can provide us with an example of GraphicsMill being used in an MVC5 environment.