opencv imshow时出现GTK+2.0的错误

出现如下错误：

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)

根据提示是由于GTK显示的错误，需要安装libgtk，但是发现已经安装了gtk，这种情况可能是qt的问题
参考https://*.com/questions/14655969/opencv-error-the-function-is-not-implemented
并且cmake时不需要全部删除重新编译，直接cmake -D WITH_QT=ON ..就可以添加相关功能