# \[new\_builder\] Unable to build construction

**URL:** <https://discourse.stonehearth.net/t/new-builder-unable-to-build-construction/34534>\
**Category:** Other Reports\
**Tags:** duplicate\
**Created:** [April 15, 2018, 3:28pm UTC](https://discourse.stonehearth.net/t/new-builder-unable-to-build-construction/34534 "2018-04-15T15:28:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Yangzhoui](https://sea2.discourse-cdn.com/flex022/user_avatar/discourse.stonehearth.net/yangzhoui/32/65492_2.png) [@Yangzhoui](https://discourse.stonehearth.net/u/Yangzhoui)\
**Post date:** [April 15, 2018, 3:28pm UTC](https://discourse.stonehearth.net/t/new-builder-unable-to-build-construction/34534/1 "2018-04-15T15:28:26Z")

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**Summary:**

I made a building and try to build it. Got an error and my workers wont start building.

**Steps to reproduce:**

1. 
2. 
3. 

**Expected Results:**

**Actual Results:**

release-815 (x64)[M]  
stonehearth/components/building2/building.lua:626: variable ‘f’ is not declared  
stack traceback:  
radiant/modules/commons.lua:53: in function ‘report\_traceback’  
radiant/modules/commons.lua:64: in function \<radiant/modules/commons.lua:58\>  
[C]: in function ‘error’  
radiant/lib/strict.lua:31: in function \<radiant/lib/strict.lua:29\>  
stonehearth/components/building2/building.lua:626: in function ‘method’  
radiant/modules/events.lua:81: in function ‘instance’  
radiant/modules/events.lua:291: in function \<radiant/modules/events.lua:285\>  
[C]: in function ‘xpcall’  
radiant/modules/commons.lua:73: in function ‘xpcall’  
radiant/modules/events.lua:285: in function ‘trigger’  
radiant/modules/events.lua:375: in function \<radiant/modules/events.lua:374\>  
[C]: in function ‘xpcall’  
radiant/modules/commons.lua:73: in function ‘xpcall’  
radiant/modules/events.lua:374: in function ‘\_fire\_async\_triggers’  
radiant/modules/events.lua:452: in function ‘\_update’  
radiant/server.lua:67: in function \<radiant/server.lua:64\>  
**Notes:**

**Attachments:**

**Version Number and Mods in use:**

Unstable builder version buidl 815

Yang & co’s mods (of which i did not use anything in this building)

**System Information:**

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<div class="post-metadata">

**Author:** ![Relyss](https://sea2.discourse-cdn.com/flex022/user_avatar/discourse.stonehearth.net/relyss/32/41785_2.png) [@Relyss](https://discourse.stonehearth.net/u/Relyss)\
**Post date:** [April 16, 2018, 5:34pm UTC](https://discourse.stonehearth.net/t/new-builder-unable-to-build-construction/34534/2 "2018-04-16T17:34:20Z")

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2 posts were merged into an existing topic: [[New\_Builder] Engine error](https://discourse.stonehearth.net/t/new-builder-engine-error/34394)

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<div class="post-metadata">

**Author:** ![Relyss](https://sea2.discourse-cdn.com/flex022/user_avatar/discourse.stonehearth.net/relyss/32/41785_2.png) [@Relyss](https://discourse.stonehearth.net/u/Relyss)\
**Post date:** [April 16, 2018, 5:34pm UTC](https://discourse.stonehearth.net/t/new-builder-unable-to-build-construction/34534/3 "2018-04-16T17:34:20Z")

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