我正在尝试安装新的Python OpenCV我得到了以下错误，需要知道它的含义（以及可能如何解决）？
我安装得像这样（Mac在virtualenv中运行python 2.7）。
sudo port selfupdate
sudo port install opencv
sudo port -v install opencv +python27
然后：
sudo pip install pyopencv
...我收到了这个错误：
Error:
-- Configuring incomplete, errors occurred!
Configuring PyOpenCV via CMake...
Error: error occurred while running CMake to configure PyOpenCV.
You may want to manually configure PyOpenCV by running cmake's tools:
mkdir build
cd build
cmake-gui .. OR cmake ..
cd ..