Issues with Viz3d of opencv

I'm actually using a tutorial from opencv in C++ with QtCreator that displays a 3D Cube with Viz3D. The problem is that it craches and doesn't want to work at the first line that calls the cv::viz

I'm using Opencv 4.1.0 on Qt5 / Ubuntu 18.10 the libopencv_viz.so exists in my libs' path Thank you for the help