title: __WEBPACK_IMPORTED_MODULE_4_react___default.a.memo is not a function
body: <p>I just connect the app with redux and react-redux connect function, together with state and dispatches. It compiled without problems but the results are not showing. And it looks like below.</p>
  
  <p>I tried to find it and found that i have to change react version. </p>
  
  <pre><code>$ sudo npm install --save react@16.4.0 react-dom@16.4.0
  </code></pre>
  
  <p>But it didn't work.</p>
  
  <p>I am following this tutorial. 
  <a href="https://www.youtube.com/watch?v=BxzO2M7QcZw" rel="noreferrer">https://www.youtube.com/watch?v=BxzO2M7QcZw</a></p>
  
  <p><a href="https://i.stack.imgur.com/AdcHg.png" rel="noreferrer"><img src="https://i.stack.imgur.com/AdcHg.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/tfPEu.png" rel="noreferrer"><img src="https://i.stack.imgur.com/tfPEu.png" alt="enter image description here"></a></p>