Hi, I'm trying to run this example with the guide https://github.com/IntelRealSense/librealsense/blob/jupyter/notebooks/distance_to_object.ipynb
Perfectly arrive in In  and Out 
but when arriving at the lines In :
colorizer = rs.colorizer ()
colorized_depth = np.asanyarray (colorizer.colorize (depth_frame) .get_data ())
throws me an error: np.asanyarray (colorizer.colorize (depth_frame) .get_data ()) RuntimeError: null pointer passed for argument "frame"
I'm stuck there and I don't know what to do, maybe you can help me?
You can communicate directly with Dorodnic, the author of the distance_to_object guide, by visiting the RealSense GitHub at the link below and clicking the New Issue button to repost your question there. Please reference @dorodnic in your message there to highlight that you would like input from him in particular.