---
url: >-
  https://adk.nht.io/api/@nhtio/adk/batteries/artifacts/variables/E_XML_PARSER_PEER_MISSING.md
description: >-
  Thrown when the fast-xml-parser optional peer is not installed or fails to
  load.
---

# Variable: E\_XML\_PARSER\_PEER\_MISSING

```ts
const E_XML_PARSER_PEER_MISSING: CreatedException<[string]>;
```

Defined in: [src/batteries/artifacts/xml/exceptions.ts:21](https://github.com/NHTIO/ADK/blob/v1.20260907.0/src/src/batteries/artifacts/xml/exceptions.ts#L21)

Thrown when the fast-xml-parser optional peer is not installed or fails to load.

## Remarks

The message template includes the package name, a description of its purpose, the underlying
error, and the exact install command, so the consumer sees a complete, actionable message
regardless of call site.