nodejs

Common Node.js errors with diagnosis and solutions.

Skills
Development
0

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Content

# Node.js Error Patterns

Common Node.js errors with diagnosis and solutions.

## Module Errors

### MODULE_NOT_FOUND

```
Error: Cannot find module 'package-name'
```

**Causes**:
1. Package not installed
2. Typo in import/require
3. node_modules corrupted
4. Wrong relative path

**Solutions**:
```bash
# Install missing package
npm install package-name

# If corrupted node_modules
rm -rf node_modules package-lock.json
npm install

# Check if package exists
npm ls package-name
```

**Prevention**: Use `npm ci` in CI/CD, add postinstall check.

---

### ERR_MODULE_NOT_FOUND (ESM)

```
Error [ER

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