title: 'material-ui' does not contain an export named 'withStyles'
body: <p>My package.json looks like this. The app was working fine until a while ago suddenly i get this error.</p>
  
  <pre><code>    "@material-ui/icons": "1.0.0-beta.42",
  "chartist": "0.10.1",
  "classnames": "2.2.5",
  "material-ui": "1.0.0-beta.41",
  "npm-run-all": "4.1.2",
  "perfect-scrollbar": "1.3.0",
  "react": "16.2.0",
  "react-chartist": "0.13.1",
  "react-dom": "16.2.0",
  "react-google-maps": "9.4.5",
  "react-router-dom": "4.2.2",
  "react-scripts": "1.0.17",
  "react-swipeable-views": "0.12.12"
  </code></pre>
  
  <p>My component looks like this
  import React from "react";
      import {
      withStyles,
      Card,
      CardHeader,
      CardContent,
      CardActions,
      Typography
      } from "material-ui";
      import PropTypes from "prop-types";</p>
  
  <pre><code>import profileCardStyle from "assets/jss/material-dashboard-react/profileCardStyle";
  
  function ProfileCard({ ...props }) {
  const { classes, subtitle, title, description, footer, avatar } = props;
  return (
  &lt;Card className={classes.card}&gt;
  &lt;CardHeader
  classes={{
  root: classes.cardHeader,
  avatar: classes.cardAvatar
  }}
  avatar={&lt;img src={avatar} alt="..." className={classes.img} /&gt;}
  /&gt;
  &lt;CardContent className={classes.textAlign}&gt;
  {subtitle !== undefined ? (
  &lt;Typography component="h6" className={classes.cardSubtitle}&gt;
  {subtitle}
  &lt;/Typography&gt;
  ) : null}
  {title !== undefined ? (
  &lt;Typography component="h4" className={classes.cardTitle}&gt;
  {title}
  &lt;/Typography&gt;
  ) : null}
  {description !== undefined ? (
  &lt;Typography component="p" className={classes.cardDescription}&gt;
  {description}
  &lt;/Typography&gt;
  ) : null}
  &lt;/CardContent&gt;
  &lt;CardActions className={classes.textAlign + " " + classes.cardActions}&gt;
  {footer}
  &lt;/CardActions&gt;
  &lt;/Card&gt;
  );
  }
  
  ProfileCard.propTypes = {
  classes: PropTypes.object.isRequired,
  title: PropTypes.node,
  subtitle: PropTypes.node,
  description: PropTypes.node,
  footer: PropTypes.node,
  avatar: PropTypes.string
  };
  
  export default withStyles(profileCardStyle)(ProfileCard);
  </code></pre>