Promoting hearthling occasionally breaks AI

Support Bug Reports
1

Summary: Occasionally when I promote a hearthling it will produce errors and the AI stops completely for that particular hearthling. They will remain in a perpetual “promoting” state and will just stand there, completely braindead. This doesn’t happen on every occasion.

Steps to reproduce:

  1. Wait for combat (see below notes).
  2. Promote a hearthling.

Notes: I’ve encountered this bug twice tonight and once with previous release-848 (so it hasn’t been introduced overnight). On today’s occasions I was promoting to a footman and another to a cleric at separate times during my game. On one occasion I recall combat was active, so I am unsure whether this is a contributing factor, as I cannot remember if combat was active on the previous occasion. I haven’t found a way to get the AI to begin working again, so I’ve had to reload an autosave on each occasion.

Attachments:
These errors occurred while promoting a hearthling from a herbalist to cleric while combat was underway.

ERROR 1 OF 5

release-849 (x64)[M]
...tonehearth/services/server/combat/combat_service.lua:383: attempt to call method 'is_valid' (a nil value)
stack traceback:
	...tonehearth/services/server/combat/combat_service.lua:383: in function 'get_entity_radius'
	...tonehearth/services/server/combat/combat_service.lua:355: in function 'get_melee_range'
	...ehearth/ai/actions/combat/get_melee_range_action.lua:27: in function <...ehearth/ai/actions/combat/get_melee_range_action.lua:18>
	[C]: in function 'start_thinking'
	stonehearth/services/server/tasks/task_action.lua:102: in function '_start_stop_thinking'
	stonehearth/services/server/tasks/task_action.lua:174: in function <stonehearth/services/server/tasks/task_action.lua:168>
	[C]: in function 'start_thinking'
	...nehearth/services/server/tasks/task_group_action.lua:91: in function <...nehearth/services/server/tasks/task_group_action.lua:45>
	[C]: ?
	[C]: in function 'run'
	stonehearth/components/ai/ai_component.lua:530: in function <stonehearth/components/ai/ai_component.lua:514>
	[C]: in function 'xpcall'
	radiant/modules/commons.lua:73: in function 'xpcall'
	stonehearth/components/ai/ai_component.lua:514: in function '_thread_main'
	stonehearth/services/server/threads/thread.lua:277: in function <stonehearth/services/server/threads/thread.lua:274>
	[C]: in function 'xpcall'
	radiant/modules/commons.lua:73: in function 'xpcall'
	stonehearth/services/server/threads/thread.lua:274: in function 'f'
	radiant/lib/env.lua:15: in function <radiant/lib/env.lua:14>

ERROR 2 OF 5

release-849 (x64)[M]
stack traceback:
[C]: in function ‘run’
stonehearth/components/ai/ai_component.lua:530: in function <stonehearth/components/ai/ai_component.lua:514>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:73: in function ‘xpcall’
stonehearth/components/ai/ai_component.lua:514: in function ‘_thread_main’
stonehearth/services/server/threads/thread.lua:277: in function <stonehearth/services/server/threads/thread.lua:274>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:73: in function ‘xpcall’
stonehearth/services/server/threads/thread.lua:274: in function ‘f’
radiant/lib/env.lua:15: in function <radiant/lib/env.lua:14>

ERROR 3 OF 5

release-849 (x64)[M]
CHECK failed: C:\rb\ihome\root\SH-OB0-BUILD\stonehearth\source\lib\lua\ai\execution_frame.cpp:192
(2447 Riley Fenton) (stonehearth:top) bad frame transition to “stop” from “starting_thinking”
Culprit:
frame: stonehearth:top
stack traceback:
[C]: ?
[C]: in function ‘stop’
stonehearth/components/ai/ai_component.lua:590: in function <stonehearth/components/ai/ai_component.lua:514>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:73: in function ‘xpcall’
stonehearth/components/ai/ai_component.lua:514: in function ‘_thread_main’
stonehearth/services/server/threads/thread.lua:277: in function <stonehearth/services/server/threads/thread.lua:274>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:73: in function ‘xpcall’
stonehearth/services/server/threads/thread.lua:274: in function ‘f’
radiant/lib/env.lua:15: in function <radiant/lib/env.lua:14>

ERROR 4 OF 5

release-849 (x64)[M]
CHECK failed: C:\rb\ihome\root\SH-OB0-BUILD\stonehearth\source\lib\lua\ai\execution_frame.cpp:1007
invalid initial state “starting_thinking” in run
Culprit:
frame: stonehearth:top
stack traceback:
[C]: ?
[C]: in function ‘run’
stonehearth/components/ai/ai_component.lua:530: in function <stonehearth/components/ai/ai_component.lua:514>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:73: in function ‘xpcall’
stonehearth/components/ai/ai_component.lua:514: in function ‘_thread_main’
stonehearth/services/server/threads/thread.lua:277: in function <stonehearth/services/server/threads/thread.lua:274>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:73: in function ‘xpcall’
stonehearth/services/server/threads/thread.lua:274: in function ‘f’
radiant/lib/env.lua:15: in function <radiant/lib/env.lua:14>

ERROR 5 OF 5

release-849 (x64)[M]
@stonehearth/components/ai/ai_component.lua:575: (2447 Riley Fenton) has not yielded after 10 ai spins. Are they in a bad state? Last abort reasons: < (x10)>
stack traceback:
radiant/modules/commons.lua:53: in function ‘report_traceback’
radiant/modules/commons.lua:262: in function ‘verify’
stonehearth/components/ai/ai_component.lua:575: in function <stonehearth/components/ai/ai_component.lua:514>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:73: in function ‘xpcall’
stonehearth/components/ai/ai_component.lua:514: in function ‘_thread_main’
stonehearth/services/server/threads/thread.lua:277: in function <stonehearth/services/server/threads/thread.lua:274>
[C]: in function ‘xpcall’
radiant/modules/commons.lua:73: in function ‘xpcall’
stonehearth/services/server/threads/thread.lua:274: in function ‘f’
radiant/lib/env.lua:15: in function <radiant/lib/env.lua:14>

Version Number and Mods in use:
Release-849(x64)
Rivers
Giant Maps

System Information:
Operating System: Windows 10 Pro 64-bit (10.0, Build 17134) (17134.rs4_release.180410-1804)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: G1.Sniper 5
BIOS: BIOS Date: 08/25/14 15:28:56 Ver: 04.06.05 (type: BIOS)
Processor: Intel® Core™ i7-4770K CPU @ 3.50GHz (8 CPUs), ~3.5GHz
Memory: 16384MB RAM
Available OS Memory: 16260MB RAM
Page File: 11439MB used, 7764MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 12

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