Production build error - p.update(...) is undefined - makeStyles/sidebar.js

What you were expecting: To have my local build work in production. I deleted node_modules and package-lock.json to have an identical environment but to no help.

What happened instead: A broken production build. It prevents my from logging in. Shows this error when the url changes, leaving me with a white screen.

Related code: I have a very minimal install with almost no customization.

Other information:

TypeError: "p.update(...) is undefined"
    nn makeStyles.js:119
    a makeStyles.js:234
    a makeStyles.js:187
    a makeStyles.js:226
    B Sidebar.js:110
    React 6
    unstable_runWithPriority scheduler.production.min.js:270
    React 5
    a hooks.js:17
    u CoreAdminRouter.js:210
    s CoreAdminRouter.js:139
    s CoreAdminRouter.js:69
    a CoreAdminRouter.js:21
react-dom.production.min.js:4636
    React 5
    unstable_runWithPriority scheduler.production.min.js:270
    React 4
    unstable_runWithPriority scheduler.production.min.js:270
    React 5
    a hooks.js:17
    u CoreAdminRouter.js:210
    s CoreAdminRouter.js:139
    s CoreAdminRouter.js:69
    a CoreAdminRouter.js:21

inspector shows me it’s related to this:

    var dynamicSheet = stylesOptions.jss.createStyleSheet(sheetManager.dynamicStyles, _extends({
      link: true
    }, options));
    dynamicSheet.update(props).attach();

Environment

    "jsoneditor": "^7.0.4",
    "jsoneditor-react": "^1.0.1",
    "jwt-decode": "^2.2.0",
    "lodash": "^4.17.15",
    "moment": "^2.24.0",
    "prop-types": "^15.7.2",
    "query-string": "^6.5.0",
    "ra-input-markdown": "^1.1.1",
    "ra-input-rich-text": "^3.1.0",
    "react": "^16.9.0",
    "react-admin": "^3.1.1",
    "react-dom": "^16.9.0",
    "react-markdown": "^4.1.0",
    "react-mde": "^7.6.2",
    "react-scripts": "3.0.1",
    "react-transition-group": "^4.3.0",
    "showdown": "^1.9.0"

• Browser: Latest Firefox & Chrome

[adrid]

I was just going through the tutorial from the empty app and I have the same. seems there is a bug on the material-ui. This is fixing the issue for me for now

[ThieryMichel]

Considered resolved.