title: make: *** No rule to make target 'qt5py3'. Stop
body: <p>I'm working on a machine learning assignment. By the when I was trying to install the following file</p>
  
  <pre><code>brew install qt qt5
  brew install libxml2
  make qt5py3
  python labelImg.py
  python  labelImg.py [IMAGE_PATH] [PRE-DEFINED CLASS FILE]
  </code></pre>
  
  <p>at make qt5py3 the output from terminal is make: *** No rule to make target 'qt5py3'.  Stop</p>
  
  <p>I'm using OsX high sierra with default terminal
  Does anyone know just what's happened?</p>