尝试遵守Yolo时，我收到未找到包错误

我尝试使用 yolo 进行对象检测，但是当我尝试编译它时，出现此错误：

Package opencv was not found in the pkg-config search path.
Perhaps you should add the directory containing `opencv.pc'
to the PKG_CONFIG_PATH environment variable
No package 'opencv' found
Package opencv was not found in the pkg-config search path.
Perhaps you should add the directory containing `opencv.pc'
to the PKG_CONFIG_PATH environment variable
No package 'opencv' found

我的意思是这是一个很长的错误，但我想这就是它的本质——我尝试将环境变量设置为 OpenCV 路径，以下是具体情况

locate opencv.pc
/home/decentmakeover2/anaconda3/lib/pkgconfig/opencv.pc    
/home/decentmakeover2/anaconda3/pkgs/opencv-3.1.0-
np111py35_1/lib/pkgconfig/opencv.pc
echo $PKG_CONFIG_PATH 
:/home/decentmakeover2/anaconda3/lib/pkgconfig/opencv.pc

我不确定如何进行。