title: TypeError: jQuery(...).tpessential is not a function
body: <p>I installed Rev Slider and Essential Grid plugin. However, I got this error:</p>
  
  <blockquote>
    <p>message: TypeError: jQuery(...).tpessential is not a function. </p>
  </blockquote>
  
  <p>When I deactivated Rev Slider, Ess Grid plugin works again. I tried to remove and re-install Rev Slider but it doesn't work. </p>
  
  <p>Hope anyone can help me out. Thanks in advance.</p>