[new_builder] error when clicking build: f not declared

When clicking the build botton, the following error pops up, and the building process doesn’t start

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>

Steps to reproduce:

  1. load attached save file
  2. click build
  3. unpause the game
  4. error pops up (also top part of roof says it is unbuildable)

Expected Results:
Everything starts building

Actual Results:
Error, building not starting, reclicking the build button does nothing

Screenshot of building

Savefile: 1523391209282.zip (4.5 MB)
Building blueprint: 7dfdd988-d138-4dd5-ade1-d2e69cff9c48.zip (89.0 KB)

Version Number and Mods in use:
Version: alpha 24, release 815 (rickety building)
Mods: debugtools, advanced loadouts

System Information:
Windows 10, intel i7 3610QM, 24 GB ram, nvidia quadro K1000M

A post was merged into an existing topic: [New_Builder] Engine error