"OpenCV Error: Unspecified error "..., 321OpenCV 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 cvNamedWindow, file /home/opencv-2.4.13/modules/highgui/src/window.cpp, line 483
1：yum install libgnomeui-devel
2：重新安装opencv
3：重新编译opencv 程序
4：startx
5：