I used the source code downloaded from github to install opencv. My Cmake command is as follows: cmake \ -DCMAKE_BUILD_TYPE=Release \ -DCMAKE_INSTALL_PREFIX=/usr/local \ -DOPENCV_ENABLE_NONFREE=1 \ ...

When trying the steps with Batch Mode and Follower Mode based on the document, it will throw "ModuleNotFoundError: No module named 'ufo.config'; 'ufo' is not a package" exception which result to the ...