---
title: KM00025: ERROR_IllegalCharacters
---

|            |           |
|------------|---------- |
| Message    | File contains <param> illegal character\(s\), including Illegal \(U\+NAN\) |
| Module     | [kmc-ldml.CompilerMessages](kmc-ldml.compilermessages) |
| Identifier | `ERROR_IllegalCharacters` |