opencv error ??????

OpenCV Error: Unspecified error (The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvWaitKey, file /home/pi/workspace/opencv/modules/highgui/src/window.cpp, line 682
Traceback (most recent call last):
  File "DeepLearning/python/scripts/facedetection/yolo/test_video.py", line 163, in <module>
    if cv2.waitKey(24) & 0xFF == ord('q'):
cv2.error: /home/pi/workspace/opencv/modules/highgui/src/window.cpp:682: error: (-2) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function cvWaitKey