# \#beast2\_beast

**URL:** https://help.galaxyproject.org/tag/beast2-beast/827.md

[Latest](https://help.galaxyproject.org/latest.md) · [Categories](https://help.galaxyproject.org/categories.md) · [Tags](https://help.galaxyproject.org/tags.md)

---

## [BEAST2 tool fails with ClassNotFoundException on Galaxy](https://help.galaxyproject.org/t/beast2-tool-fails-with-classnotfoundexception-on-galaxy/18414)

<div class="topic-metadata">

**Author:** [@Sawar](https://help.galaxyproject.org/u/Sawar)\
**Replies:** 1\
**Last updated:** [September 23, 2026, 6:08pm UTC](https://help.galaxyproject.org/t/beast2-tool-fails-with-classnotfoundexception-on-galaxy/18414 "2026-09-23T18:08:55Z")

</div>

Continuing the discussion from Installation of BEAST on Galaxy Europe: Dear Galaxy Europe team, I’m trying to run the BEAST2 tool on usegalaxy.eu and the job fails immediately, before the analysis starts. The same XML …