# pydantic.errors.ListError: list length must be at least 3

- **ID:** `python/pydantic-list-length-mismatch`
- **Domain:** python
- **Category:** data_error
- **Verification:** ai_generated
- **Fix Rate:** 80%

## Root Cause

A list field with Field(min_length=3) receives a list with fewer than 3 elements.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 2.x | active | — | — |

## Workarounds

1. **** (90% success)
   ```
   Ensure list has enough elements: data = data + [default]*n
   ```
2. **** (95% success)
   ```
   Adjust Field constraint: Field(min_length=1)
   ```

## Dead Ends

- **** — Validator must return value; otherwise ConfigError. (60% fail)
- **** — None may not be valid element type. (70% fail)