# Engine error on removing storage area

**URL:** <https://discourse.stonehearth.net/t/engine-error-on-removing-storage-area/21246>\
**Category:** Previous Build Reports\
**Created:** [April 3, 2016, 9:43pm UTC](https://discourse.stonehearth.net/t/engine-error-on-removing-storage-area/21246 "2016-04-03T21:43:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Nek](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@Nek](https://discourse.stonehearth.net/u/Nek)\
**Post date:** [April 3, 2016, 9:43pm UTC](https://discourse.stonehearth.net/t/engine-error-on-removing-storage-area/21246/1 "2016-04-03T21:43:00Z")

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_Hi, I would like to thank you all first for a great game that keeps me on managing mostly everything! I would like to share this bug that starts when a 20x20 storage area is not longer useful in it’s place. When I remove it I received this engine error._

```auto
release-549 (x64)
radiant/modules/entities.lua:78: attempt to call method 'is_valid' (a nil value)
stack traceback:
	[C]: in function 'is_valid'
	radiant/modules/entities.lua:78: in function 'destroy_entity'
	stonehearth/call_handlers/entities_call_handler.lua:18: in function <stonehearth/call_handlers/entities_call_handler.lua:15>

```

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<div class="post-metadata">

**Author:** ![jomaxro](https://sea2.discourse-cdn.com/flex022/user_avatar/discourse.stonehearth.net/jomaxro/32/47935_2.png) [@jomaxro](https://discourse.stonehearth.net/u/jomaxro)\
**Post date:** [April 3, 2016, 10:04pm UTC](https://discourse.stonehearth.net/t/engine-error-on-removing-storage-area/21246/2 "2016-04-03T22:04:21Z")

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Hey there @Nek, welcome to the Discourse!

Thanks for the report 😃.