Problem with creating new GUI Window

Hi together,

I start using nebula 2 at the moment and so I encounter different problems from time to time. Now, I try to create a new GUI Window, but somehow, when I am trying to initiate it, the program shuts down with the error message: “nKernelServer: Couldn’t create object ‘window2’ of class ‘testWindow’”.

I am using the nApplicationTutorial and there created a ntestwindow.h and a ntestwindow.cc

The way I try to create the second window is the following:

                        this->testWindow = static_cast<nTestWindow*>(this->ngui->NewWindow("testWindow", false));

So it would be great if there is anyone who could give me a hint what I am doing wrong.

Thanks for help and Cheers

Christoph