# SnpEff eff (version 5.2)

**URL:** <https://help.galaxyproject.org/t/snpeff-eff-version-5-2/17288>\
**Category:** usegalaxy.org support\
**Tags:** troubleshooting, tool-help, snpeff\
**Created:** [January 13, 2026, 5:31pm UTC](https://help.galaxyproject.org/t/snpeff-eff-version-5-2/17288 "2026-01-13T17:31:19Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jennaj](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jennaj/32/27_2.png) [@jennaj](https://help.galaxyproject.org/u/jennaj)\
**Post date:** [January 13, 2026, 7:39pm UTC](https://help.galaxyproject.org/t/snpeff-eff-version-5-2/17288/2 "2026-01-13T19:39:31Z")

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Hi @xuanz01

Hopefully we can help! It looks like the annotated wasn’t getting attatched in the output report correctly. This means it likely wasn’t considered correctly in the statistics.

Please try using the **SnpEff4.3** versions of these tools instead.

This will allow you to perform this step in the tutorial you reference. [Hands-on: Mapping and molecular identification of phenotype-causing mutations / Mapping and molecular identification of phenotype-causing mutations / Variant Analysis](https://training.galaxyproject.org/training-material/topics/variant-analysis/tutorials/mapping-by-sequencing/tutorial.html#hands-on-variant-annotation)

The **SnpEff5.N** versions have some issues with how the database keys and minor tool revisions are managed in the downloaded precomputed indexes. This can lead to small issues with the downloaded indexes. This happens when the tool are used in Galaxy but also anywhere else. There was an update last summer but I haven’t personally seen it fully work correctly yet. The ticket with more details is here.

> [@Downloading SnpEff database into history: Create database instead!](https://help.galaxyproject.org/t/downloading-snpeff-database-into-history-create-database-instead/15963/3):
>
> see [Databases not available? July 12, 2025? · Issue #596 · pcingola/SnpEff · GitHub](https://github.com/pcingola/SnpEff/issues/596#issuecomment-3079764945)

However, any version will work fine if you are _creating_ your own index. If interested, please see. → [Downloading SnpEff database into history: Create database instead!](https://help.galaxyproject.org/t/downloading-snpeff-database-into-history-create-database-instead/15963)

I’m wasn’t sure if you were running through the tutorial with the tutorial data? Exact species? If yes, then using the other version should be be enough.

If you are working with something different, that advice _might_ be enough. Or there could be some other conflict in the reference data – we can maybe help more here with that but would need to see the example since the file details are the important parts. How to share. → [How to get faster help with your question](https://help.galaxyproject.org/t/how-to-get-faster-help-with-your-question/11469)

Let’s start there! Hope this helps but please let us know if it actually does or if we can help more. 🙂

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