title: TypeError: Cannot read property 'isRequired' of undefined (material ui )
body: <p>I've tried to switch from <code>@material-ui/core@3.9.3</code> to the latest current version of material <code>v4.4.3</code>, but I've got this error</p>
  
  <p><a href="https://i.stack.imgur.com/BHxVp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BHxVp.png" alt="enter image description here"></a></p>
  
  <p>It isn't clear for me in which snippet of code is this issue happens and how to fix it. Maybe someone has some ideas about it? Also, you can check all my dependencies in package.json file. Pls, let me know which info you need if it isn't clear and I will attach it.</p>
  
  <pre><code>"dependencies": {
      "@babel/runtime": "7.1.5",
      "@date-io/date-fns": "0.0.2",
      "@material-ui/core": "4.4.3",
      "@material-ui/icons": "3.0.1",
      "@material-ui/pickers": "3.2.6",
      "axios": "0.19.0",
      "classnames": "2.2.6",
      "compression-webpack-plugin": "3.0.0",
      "connected-react-router": "6.4.0",
      "date-fns": "2.0.0-alpha.27",
      "enzyme": "3.10.0",
      "enzyme-adapter-react-16": "1.14.0",
      "history": "4.6.3",
      "humps": "2.0.0",
      "jss": "^10.0.0",
      "jss-camel-case": "6.1.0",
      "jss-default-unit": "8.0.2",
      "jss-expand": "5.3.0",
      "jss-extend": "6.2.0",
      "jss-global": "3.0.0",
      "jss-nested": "6.0.1",
      "jss-props-sort": "6.0.0",
      "jss-vendor-prefixer": "8.0.1",
      "lodash": "4.17.14",
      "moment": "2.23.0",
      "normalizr": "3.3.0",
      "prop-types": "15.6.2",
      "qs": "6.5.2",
      "react": "16.8.6",
      "react-dom": "16.8.6",
      "react-dropzone": "10.1.4",
      "react-hot-loader": "4.8.8",
      "react-image": "2.1.1",
      "react-intl": "2.7.2",
      "react-intl-po": "2.2.2",
      "react-intl-redux": "2.0.2",
      "react-jss": "^10.0.0",
      "react-motion": "0.5.2",
      "react-pose": "4.0.8",
      "react-redux": "7.0.3",
      "react-router": "4.3.1",
      "react-router-dom": "4.3.1",
      "react-spinners": "0.4.7",
      "react-universal-component": "4.0.0",
      "recompose": "0.30.0",
      "redux": "4.0.1",
      "redux-axios-middleware": "4.0.0",
      "redux-devtools-extension": "2.13.8",
      "redux-form": "8.2.2",
      "redux-form-validators": "^3.2.2",
      "redux-immutable-state-invariant": "2.1.0",
      "redux-logger": "3.0.6",
      "redux-thunk": "2.3.0",
      "store2": "2.7.1",
      "uglifyjs-webpack-plugin": "2.0.1"
    }
  </code></pre>