<p dir="auto">Hi, I'm going to the Dialog docs page (<a href="https://material-ui.com/demos/dialogs/" rel="nofollow">https://material-ui.com/demos/dialogs/</a>) and it's not working (none of the clicks, see code card expanders, etc.) - I'm using the latest Chrome to view.</p>
<p dir="auto">All the other component docs seem to be working fine though.</p>
<h3 dir="auto">Problem description</h3>
<p dir="auto">When i run command npm start in docs directory, i get error.</p>
<p dir="auto">Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content=" - configuration.entry should be one of these:
   object { &lt;key&gt;: non-empty string | [non-empty string] } | non-empty string | [non-empty string] | function
   The entry point(s) of the compilation.
   Details:
    * configuration.entry['lib'] should be a string.
    * configuration.entry['lib'] should NOT have duplicate items (items ## 9 and 26 are identical) ({
        &quot;keyword&quot;: &quot;uniqueItems&quot;,
        &quot;dataPath&quot;: &quot;.entry['lib']&quot;,
        &quot;schemaPath&quot;: &quot;#/definitions/common.nonEmptyArrayOfUniqueStringValues/uniqueItems&quot;,
        &quot;params&quot;: {
          &quot;i&quot;: 26,
          &quot;j&quot;: 9
        },
        &quot;message&quot;: &quot;should NOT have duplicate items (items ## 9 and 26 are identical)&quot;,
        &quot;schema&quot;: true,
        &quot;parentSchema&quot;: {
          &quot;items&quot;: {
            &quot;minLength&quot;: 1,
            &quot;type&quot;: &quot;string&quot;
          },
          &quot;minItems&quot;: 1,
          &quot;type&quot;: &quot;array&quot;,
          &quot;uniqueItems&quot;: true
        },
        &quot;data&quot;: [
          &quot;react-hot-loader/index&quot;,
          &quot;react-hot-loader/patch&quot;,
          &quot;eventsource-polyfill&quot;,
          &quot;webpack-dev-server/client&quot;,
          &quot;react-addons-perf&quot;,
          &quot;webpack/hot/log-apply-result&quot;,
          &quot;webpack-dev-server/client/index&quot;,
          &quot;marked&quot;,
          &quot;prismjs&quot;,
          &quot;react&quot;,
          &quot;react-redux&quot;,
          &quot;react-router&quot;,
          &quot;react-router-scroll&quot;,
          &quot;react-swipeable-views&quot;,
          &quot;redux&quot;,
          &quot;classnames&quot;,
          &quot;dom-helpers&quot;,
          &quot;jss-preset-default&quot;,
          &quot;jss-theme-reactor&quot;,
          &quot;keycode&quot;,
          &quot;prop-types&quot;,
          &quot;react-event-listener&quot;,
          &quot;react-transition-group&quot;,
          &quot;react-scrollbar-size&quot;,
          &quot;scroll&quot;,
          &quot;warning&quot;,
          &quot;react&quot;,
          &quot;react-dom&quot;
        ]
      }).
      [non-empty string]
    * configuration.entry['lib'] should be one of these:
      non-empty string | [non-empty string]
    * configuration.entry should be a string.
    * configuration.entry should be an array:
      [non-empty string]
    * configuration.entry should be an instance of function
      function returning an entry object or a promise..
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! material-ui-docs@0.16.0 start:dll: `webpack --config webpack.dll"><pre class="notranslate"><code class="notranslate"> - configuration.entry should be one of these:
   object { &lt;key&gt;: non-empty string | [non-empty string] } | non-empty string | [non-empty string] | function
   The entry point(s) of the compilation.
   Details:
    * configuration.entry['lib'] should be a string.
    * configuration.entry['lib'] should NOT have duplicate items (items ## 9 and 26 are identical) ({
        "keyword": "uniqueItems",
        "dataPath": ".entry['lib']",
        "schemaPath": "#/definitions/common.nonEmptyArrayOfUniqueStringValues/uniqueItems",
        "params": {
          "i": 26,
          "j": 9
        },
        "message": "should NOT have duplicate items (items ## 9 and 26 are identical)",
        "schema": true,
        "parentSchema": {
          "items": {
            "minLength": 1,
            "type": "string"
          },
          "minItems": 1,
          "type": "array",
          "uniqueItems": true
        },
        "data": [
          "react-hot-loader/index",
          "react-hot-loader/patch",
          "eventsource-polyfill",
          "webpack-dev-server/client",
          "react-addons-perf",
          "webpack/hot/log-apply-result",
          "webpack-dev-server/client/index",
          "marked",
          "prismjs",
          "react",
          "react-redux",
          "react-router",
          "react-router-scroll",
          "react-swipeable-views",
          "redux",
          "classnames",
          "dom-helpers",
          "jss-preset-default",
          "jss-theme-reactor",
          "keycode",
          "prop-types",
          "react-event-listener",
          "react-transition-group",
          "react-scrollbar-size",
          "scroll",
          "warning",
          "react",
          "react-dom"
        ]
      }).
      [non-empty string]
    * configuration.entry['lib'] should be one of these:
      non-empty string | [non-empty string]
    * configuration.entry should be a string.
    * configuration.entry should be an array:
      [non-empty string]
    * configuration.entry should be an instance of function
      function returning an entry object or a promise..
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! material-ui-docs@0.16.0 start:dll: `webpack --config webpack.dll
</code></pre></div>
<h3 dir="auto">Link to minimal working code that reproduces the issue</h3>

<h3 dir="auto">Versions</h3>
<ul dir="auto">
<li>Material-UI: next</li>
<li>React:</li>
<li>Browser:</li>
</ul>
<h3 dir="auto">Description</h3>
<h3 dir="auto">Images &amp; references</h3>
<p dir="auto">--&gt;</p>