title: Webpack warning in ReactJs
body: <p>Can anyone please explain, why I am getting this warning after <strong>npm start</strong> ?</p>
  <p>Here's my package.json</p>
  <pre><code>{
    &quot;name&quot;: &quot;rou-lesson&quot;,
    &quot;version&quot;: &quot;0.1.0&quot;,
    &quot;private&quot;: true,
    &quot;dependencies&quot;: {
      &quot;@testing-library/jest-dom&quot;: &quot;^5.16.1&quot;,
      &quot;@testing-library/react&quot;: &quot;^12.1.2&quot;,
      &quot;@testing-library/user-event&quot;: &quot;^13.5.0&quot;,
      &quot;react&quot;: &quot;^17.0.2&quot;,
      &quot;react-dom&quot;: &quot;^17.0.2&quot;,
      &quot;react-scripts&quot;: &quot;5.0.0&quot;,
      &quot;web-vitals&quot;: &quot;^2.1.2&quot;
    },
    &quot;scripts&quot;: {
      &quot;start&quot;: &quot;react-scripts start&quot;,
      &quot;build&quot;: &quot;react-scripts build&quot;,
      &quot;test&quot;: &quot;react-scripts test&quot;,
      &quot;eject&quot;: &quot;react-scripts eject&quot;
    },
    &quot;eslintConfig&quot;: {
      &quot;extends&quot;: [
        &quot;react-app&quot;,
        &quot;react-app/jest&quot;
      ]
    },
    &quot;browserslist&quot;: {
      &quot;production&quot;: [
        &quot;&gt;0.2%&quot;,
        &quot;not dead&quot;,
        &quot;not op_mini all&quot;
      ],
      &quot;development&quot;: [
        &quot;last 1 chrome version&quot;,
        &quot;last 1 firefox version&quot;,
        &quot;last 1 safari version&quot;
      ]
    }
  }
  </code></pre>
  <p>Here's a warning from webpack and I am getting this message all time after npm start.</p>
  <p><a href="https://i.stack.imgur.com/WvygH.png" rel="nofollow noreferrer">enter image description here</a></p>
  <p>after npm start</p>
  <p>You can now view rou-lesson in the browser.</p>
  <p>Local:            http://localhost:3000<br />
  On Your Network:  <a href="http://192.168.0.103:3000" rel="nofollow noreferrer">http://192.168.0.103:3000</a></p>
  <p>Note that the development build is not optimized.
  To create a production build, use npm run build.</p>
  <pre><code>&gt; assets by path static/ 1.52 MiB   asset static/js/bundle.js 1.51 MiB
  &gt; [emitted] (name: main) 1 rela   asset
  &gt; static/js/node_modules_web-vitals_dist_web-vitals_js.chunk   asset
  &gt; static/media/logo.6ce24c58023cc2f8fd88fe9d219db6c6.svg 2.5 asset
  &gt; index.html 1.67 KiB [emitted] asset asset-manifest.json 546 bytes
  &gt; [emitted] runtime modules 31.4 KiB 16 modules modules by path
  &gt; ./node_modules/ 1.38 MiB 95 modules modules by path ./src/ 18.1 KiB  
  &gt; modules by path ./src/*.css 8.82 KiB
  &gt;     ./src/index.css 2.72 KiB [built] [code generated]
  &gt;     ./node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[1].ones??ruleSet[1].rules[1].oneOf[5].use[2]!./node_modules/source-map-lode
  &gt; generated]
  &gt;     ./src/App.css 2.72 KiB [built] [code generated]
  &gt;     ./node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[1].ones??ruleSet[1].rules[1].oneOf[5].use[2]!./node_modules/source-map-lenerated]
  &gt; modules by path ./src/*.js 5.71 KiB  KiB [built] [code generated]
  &gt; webpack 5.65.0 compiled successfully in 12201 ms
  </code></pre>