# Error - invalid item group

**URL:** https://discourse.cataclysmdda.org/t/error-invalid-item-group/5523
**Category:** The Garage
**Created:** [March 20, 2014, 10:45pm UTC](https://discourse.cataclysmdda.org/t/error-invalid-item-group/5523 "2014-03-20T22:45:58Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![vbmark](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/vbmark/32/1067_2.png) [@vbmark](https://discourse.cataclysmdda.org/u/vbmark)
#### Post date: [March 20, 2014, 10:45pm UTC](https://discourse.cataclysmdda.org/t/error-invalid-item-group/5523/1 "2014-03-20T22:45:58Z")

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I am playing in classic mode and I disabled the medieval mod.

 ![](http://i.imgur.com/dTC5mvp.png)

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### Author: ![Rivet](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/rivet/32/11_2.png) [@Rivet](https://discourse.cataclysmdda.org/u/Rivet)
#### Post date: [March 21, 2014, 2:14am UTC](https://discourse.cataclysmdda.org/t/error-invalid-item-group/5523/2 "2014-03-21T02:14:42Z")

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And this is why we’ve been reticent to break the main game into ‘mods’.

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### Author: ![Soyweiser](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/soyweiser/32/37_2.png) [@Soyweiser](https://discourse.cataclysmdda.org/u/Soyweiser)
#### Post date: [March 21, 2014, 1:29pm UTC](https://discourse.cataclysmdda.org/t/error-invalid-item-group/5523/3 "2014-03-21T13:29:32Z")

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Perhaps we should just change this message to only show up when debug messages are on? It is a bit of a known problem with mods now.