title: CMAKE wont install OPENCV
body: <p>Having loads of problems trying to make my own Haar Cascade Classifier using Opencv. I have followed this tutorial (<a href="https://pythonprogramming.net/haar-cascade-object-detection-python-opencv-tutorial/" rel="nofollow noreferrer">https://pythonprogramming.net/haar-cascade-object-detection-python-opencv-tutorial/</a>) and with initial success I have been unable to replicate my results. I have turned to the Opencv Documentation and it has suggested using CMAKE but I keep getting the following error;</p>
  
  <p><a href="https://i.stack.imgur.com/Rph1b.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Rph1b.png" alt="CMAKE PROBLEM"></a></p>
  
  <p>Im sure its something simple but i cant see it. I would appreciate any help, thank you.</p>