the problem is installation of opencv with brew has crashed with errors:

> 
> Command: brew install opencv3 --HEAD --with-contrib --with-cuda --with-ffmpeg --with-tbb --with-qt5 
> 
> 
> 

[![enter image description here](https://i.stack.imgur.com/oYACM.png)](https://i.stack.imgur.com/oYACM.png)