# perldoc > XML::LibXML::ErrNo

---
type: CommandReference
command: XML::LibXML::ErrNo
mode: perldoc
section: ""
source: perldoc
---

## Quick Reference

- `use XML::LibXML::ErrNo;` — Import symbolic constants for all libxml2 error codes into the current namespace.

## Name

`XML::LibXML::ErrNo` - Structured Errors

## Description

This module is based on the `xmlerror.h` libxml2 C header file. It defines symbolic constants for all libxml2 error codes. Currently libxml2 uses over 480 different error codes.

## See Also

- `[XML::LibXML::Error](https://metacpan.org/pod/XML::LibXML::Error)`