# Revision history [back]

### getting make file error while building opencv

I am trying to run an opencv project using Microsoft visual studio 2015. in that, I was required to include opencv2/face .hpp. Then from the Google I found that I should download

https://github.com/opencv/opencv_contrib

and follow the instruction stated there. But in doing so I was getting the following error while using make -j5 command.

make: *** No targets specified and no makefile found.  Stop.


Can anyone please tell me what I should do now?

### getting make file error while building opencv

I am trying to run an opencv project using Microsoft visual studio 2015. in that, I was required to include opencv2/face .hpp. Then from the Google I found that I should download

https://github.com/opencv/opencv_contrib

and follow the instruction stated there. But in doing so I was getting the following error while using make -j5 command.

make: *** No targets specified and no makefile found.  Stop.


Can anyone please tell me what I should do now?