title: React Router not working Cannot GET /about
body: <p>Cannot understand why I cannot load about component or shop component when I go to localhost/about or localhost/shop respectively</p>
  <pre><code>    &lt;Router&gt;
          &lt;div className=&quot;App&quot;&gt;
              &lt;Nav /&gt;
              &lt;Switch&gt;
                  &lt;Route path=&quot;/about&quot; component={About} /&gt;
                  &lt;Route path=&quot;/shop&quot; component={Shop} /&gt;
                  &lt;Route exact path=&quot;/&quot; component={Home} /&gt;
              &lt;/Switch&gt;
          &lt;/div&gt;
      &lt;/Router&gt;
  </code></pre>