Node.js

ERR_REQUIRE_ESM: require() of ES Module not supported

ERR_REQUIRE_ESM

You used require() to load a package that is ESM-only (has "type": "module" or .mjs).

Common Causes

Package migrated to ESM
Using CommonJS in ESM project
Dynamic require of ESM package

Fixes

1. Use dynamic import

const mod = await import('esm-only-package');

2. Convert project to ESM
```
"type": "module" in package.json
```

3. Use createRequire

import { createRequire } from 'module';
const require = createRequire(import.meta.url);

Still not fixed?

• Search the exact error message on Stack Overflow or GitHub Issues
• Check the official docs for the language or tool
• Ensure your versions (Node, Python, npm, Docker) are up to date
• Try in a minimal reproduction (new project, single file)

Related Errors

Cannot Find Module MaxListenersExceededWarning

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All Errors

JavaScript Heap Out of Memory ModuleNotFoundError Address Already in Use IndentationError Cannot Find Module Peer Dependency Warning CORS Policy Blocked TypeError: 'NoneType' Not Subscriptable Merge Conflict Docker Port Already Allocated ENOENT: No Such File or Directory KeyError MaxListenersExceededWarning RecursionError Detached HEAD State EACCES: Permission Denied ValueError No Space Left on Device FileNotFoundError