mui / mui/material-ui

Cannot read properties of undefined (reading '__emotion_styles')

Open
#35,922 17 comments 9 reactions 1 assignee View on GitHub

@mnajdova is already working on this.

Since Jan 23, 2023.

package: styled-engine scope: system
Dominant language
JavaScript
Stars
99.1k
Forks
32.5k
Avg merge
2d 17h
Merged PRs (30d)
106

Description

Duplicates
  • I have searched the existing issues
Latest version
  • I have tested the latest version
Steps to reproduce 🕹

No response

Current behavior 😯

Hi team, when I am running my app, I am receiving following error which emerges from one of MUI files:

image

I am not able to reproduce it outside in codesandbox but putting it up here to check if there is anyone has idea why this might occur which I can look into. Any help here would be appreciated.

Expected behavior 🤔

No response

Context 🔦

No response

Your environment 🌎
npx @mui/envinfo
System:
    OS: Linux 3.10 Red Hat Enterprise Linux Server 7.9
  Binaries:
    Node: 16.18.1 
    Yarn: 1.22.11 
    npm: 7.23.0 
  Browsers:
    Chrome
  npmPackages:
    @emotion/react:  11.10.5 
    @emotion/styled:  11.10.5 
    @mui/base:  5.0.0-alpha.84 
    @mui/core-downloads-tracker:  5.11.5 
    @mui/icons-material:  5.11.0 
    @mui/lab:  5.0.0-alpha.87 
    @mui/material: ^5.1.0 => 5.11.5 
    @mui/private-theming:  5.11.2 
    @mui/styled-engine:  5.11.0 
    @mui/system:  5.11.5 
    @mui/types:  7.2.3 
    @mui/utils:  5.11.2 
    @mui/x-date-pickers:  5.0.0-alpha.1 
    @types/react:  18.0.27 
    react: ^17.0.0 => 17.0.2 
    react-dom: ^17.0.0 => 17.0.2 
    styled-components: 5.0.1 => 5.0.1 
    typescript: ^4.3.5 => 4.9.4 

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.