[IWBUMS 41.53] Save crashing at exact same time repeatedly

[khamseen]

I'm having a repeating crash with a save game. It happened as I went to sleep and time was progressing but every time it reaches 5:00AM game time the game freezes then eventually quits back to main menu after having created a _crash copy of the save.
I'm at the point where I'm at 2 months into the game, the crash seems to occur at 2 months 18 hours to be exact. 
The console.txt file is showing this

ERROR: General     , 1630461936733> ExceptionLogger.logException> Exception thrown java.lang.NullPointerException: Cannot invoke "zombie.inventory.InventoryItem.setCondition(int)" because "<local3>" is null at InventoryItem.update line:779.
ERROR: General     , 1630461936733> DebugLogStream.printException> Stack trace:
java.lang.NullPointerException: Cannot invoke "zombie.inventory.InventoryItem.setCondition(int)" because "<local3>" is null
	at zombie.inventory.InventoryItem.update(InventoryItem.java:779)
	at zombie.iso.IsoCell.ProcessItems(IsoCell.java:2823)
	at zombie.iso.IsoCell.updateInternal(IsoCell.java:5618)
	at zombie.util.lambda.Invokers$Params1$CallbackStackItem.run(Invokers.java:37)
	at zombie.core.profiling.AbstractPerformanceProfileProbe.invokeAndMeasure(AbstractPerformanceProfileProbe.java:71)
	at zombie.core.profiling.AbstractPerformanceProfileProbe.lambda$invokeAndMeasure$0(AbstractPerformanceProfileProbe.java:83)
	at zombie.util.lambda.Stacks$Params3$CallbackStackItem.invoke(Stacks.java:230)
	at zombie.util.lambda.Stacks$GenericStack.invokeAndRelease(Stacks.java:26)
	at zombie.util.Lambda.capture(Lambda.java:130)
	at zombie.core.profiling.AbstractPerformanceProfileProbe.invokeAndMeasure(AbstractPerformanceProfileProbe.java:81)
	at zombie.iso.IsoCell.update(IsoCell.java:5572)
	at zombie.iso.IsoWorld.updateInternal(IsoWorld.java:3175)
	at zombie.util.lambda.Invokers$Params1$CallbackStackItem.run(Invokers.java:37)
	at zombie.core.profiling.AbstractPerformanceProfileProbe.invokeAndMeasure(AbstractPerformanceProfileProbe.java:71)
	at zombie.core.profiling.AbstractPerformanceProfileProbe.lambda$invokeAndMeasure$0(AbstractPerformanceProfileProbe.java:83)
	at zombie.util.lambda.Stacks$Params3$CallbackStackItem.invoke(Stacks.java:230)
	at zombie.util.lambda.Stacks$GenericStack.invokeAndRelease(Stacks.java:26)
	at zombie.util.Lambda.capture(Lambda.java:130)
	at zombie.core.profiling.AbstractPerformanceProfileProbe.invokeAndMeasure(AbstractPerformanceProfileProbe.java:81)
	at zombie.iso.IsoWorld.update(IsoWorld.java:3113)
	at zombie.gameStates.IngameState.updateInternal(IngameState.java:1612)
	at zombie.gameStates.IngameState.update(IngameState.java:1319)
	at zombie.gameStates.GameStateMachine.update(GameStateMachine.java:101)
	at zombie.GameWindow.logic(GameWindow.java:285)
	at zombie.core.profiling.AbstractPerformanceProfileProbe.invokeAndMeasure(AbstractPerformanceProfileProbe.java:71)
	at zombie.GameWindow.frameStep(GameWindow.java:726)
	at zombie.GameWindow.run_ez(GameWindow.java:642)
	at zombie.GameWindow.mainThread(GameWindow.java:471)
	at java.base/java.lang.Thread.run(Unknown Source)
LOG  : General     , 1630462093657> reanimate: saved 0 zombies
LOG  : General     , 1630462093731> Saving GlobalModData
LOG  : General     , 1630462093734> STATE: exit zombie.gameStates.IngameState
LOG  : General     , 1630462093735> EXITDEBUG: IngameState.exit 1

I did remove all mods and the crash stopped happening. I'm assuming from the stack trace that at 5:00AM it's trying to spawn an item into the inventory of something but I don't know what item to try and track down any possible issue. I've gotten 2 months in without any issues and having run a search through my mods folder there are no items (besides the vanilla Katana) which start spawning only after 60 days.

Is there any way to help track down what item is causing this so I don't lose this save? 

[Beard]

I don't think there is a way to specifically track what item causes the issue, best I can suggest is disabling the mods one by one to figure out which specific mod is causing the issue and then work from there.

[khamseen]

10 hours ago, Beard said:

I don't think there is a way to specifically track what item causes the issue, best I can suggest is disabling the mods one by one to figure out which specific mod is causing the issue and then work from there.

Yeah, I was worried you were going to say that. The problem is I'm pretty sure I've narrowed it down to a single mod, but it's a mod that adds a LOT of stuff to the game so trying to track down one item that may or may not be a problem without any more details could take months.

Would I be correct to assume from the stack trace that it's an item somewhere in an inventory or being spawned in an inventory that's causing it? Just to try and at least narrow it down from like 999 to 199 items to look through lol. 

[Beard]

Yeah it does look like an inventory item, perhaps more specifically an item that spawns in the zombie inventory once the zombie died (like clothing and other items and such)

[khamseen]

43 minutes ago, Beard said:

Yeah it does look like an inventory item, perhaps more specifically an item that spawns in the zombie inventory once the zombie died (like clothing and other items and such)

Yeah that's what I was kind of leaning to since it mentions trying to set condition of the item. I'll keep ploughing on and trying to figure it out. Thanks.

[khamseen]

So interestingly, while investigating this further I think it's somehow related to weather events starting. I'm guessing that most likely means something is trying to decay because of rain or some such thing and that's triggering it.

I noticed that in my log, right before the crash it was always running a weather update
 

LOG  : General     , 1630459222667> Reseeding weather period, new seed: 650054
LOG  : General     , 1630459222667> WeatherPeriod: Creating weather pattern with strength = 0.5247318
LOG  : General     , 1630459222668> WeatherPeriod: Clearing existing stages...
LOG  : General     , 1630459222668> WeatherPeriod: Day mean temperature = 21.492489 C.
LOG  : General     , 1630459222668> WeatherPeriod: season = Autumn
LOG  : General     , 1630459222669> WeatherPeriod: cloudColor r=0.38, g=0.12, b=0.49
LOG  : General     , 1630459222669> WeatherPeriod: chances, storm=100.0, tropical=25.0, blizzard=0.0. rainTimeMulti=1.35
LOG  : General     , 1630459222669> WeatherPeriod: Cold to warm front selected.
LOG  : General     , 1630459222670> WeatherPeriod: Adding stage 'MODERATE' with duration: 2.985637664794922%.
LOG  : General     , 1630459222670> WeatherPeriod: Adding stage 'SHOWERS' with duration: 2.5703539848327637%.
LOG  : General     , 1630459222670> WeatherPeriod: Adding stage 'DRIZZLE' with duration: 3.526848316192627%.
LOG  : General     , 1630459222671> WeatherPeriod: Adding stage 'DRIZZLE' with duration: 3.506387233734131%.
LOG  : General     , 1630459222671> WeatherPeriod: Adding stage 'START' with duration: 1.6357189416885376%.
LOG  : General     , 1630459222671> WeatherPeriod: Adding stage 'CLEARING' with duration: 1.4358683824539185%.
LOG  : General     , 1630459222671> WeatherPeriod: Adding stage 'INTERMEZZO' with duration: 1.0244150161743164%.
LOG  : General     , 1630459222672> WeatherPeriod: Adding stage 'CLEARING' with duration: 1.8012824058532715%.
LOG  : General     , 1630459222672> WeatherPeriod: Adding stage 'INTERMEZZO' with duration: 1.8194530010223389%.
LOG  : General     , 1630459222672> WeatherPeriod: Adding stage 'CLEARING' with duration: 1.80965256690979%.
LOG  : General     , 1630459222673> WeatherPeriod: Adding stage 'INTERMEZZO' with duration: 2.2766218185424805%.
LOG  : General     , 1630459222673> WeatherPeriod: Adding stage 'CLEARING' with duration: 2.8894827365875244%.
LOG  : General     , 1630459222673> WeatherPeriod: Duration = 36.83032544330888.
LOG  : General     , 1630459222673> WeatherPeriod: PATTERN GENERATION FINISHED.
ERROR: General     , 1630459222703> ExceptionLogger.logException> Exception thrown java.lang.NullPointerException: Cannot invoke "zombie.inventory.InventoryItem.setCondition(int)" because "<local3>" is null at InventoryItem.update line:779.
ERROR: General     , 1630459222703> DebugLogStream.printException> Stack trace:

That got me to thinking it might be connected so using debug mode I manually triggered a storm event as I load back in and right enough the same error happens as soon as I start it. Doesn't really help me track down what it is that it's trying to decay and failing, but at least I know why it happens at that exact time. Whatever the item is, it's somewhere in the Hydrocraft 41.51+ mod.

Edited September 1, 2021 by khamseen

[khamseen]

OK so this information actually helped me a lot because it made me start thinking it could be something on the ground which was causing it and I remembered that I'd crafted a specific item which I'd left on the ground outside the day before the crash started. The item is a clay cauldron from the Hydrocraft mod and I've been able to confirm (by loading in a second character to the save and picking the item up) that removing the item from the ground before the weather event starts it prevents the crash. If I place it down again while it's raining it crashes again.

 

I've looked through it's definition and it was missing a WaterSource- on it's item replace, adding that in seems to have solved the crashing. Will report it on the mod page but thought I'd leave this information in case anyone else has the problem 

 

Edited September 1, 2021 by khamseen

[dieserWoody]

 

thank you! 

i had the same issue game would freeze at 2 am on a specific day every time...

after days of loading previous backups, looking through log  files and steam/forums i finally can play past 2 am ^^

in my case it was serveral tin cans i placed on the ground in my base because i noticed a can that i randonly dropped was filled with water.. so i thought lets put a lot down to collect water

throught the log file i noticed that there was a heavy storm starting at 2 am and the last line in the log before the game would ctd (would only ctd if i made inputs, if not the game would load me back to main menu, loading the save again would result in loading back to menu, wich adds a shitton to the log file, that made i harder to pinpoint the reason so i prefered it crashing xD) 

 

1635222691634> ExceptionLogger.logException> Exception thrown java.lang.NullPointerException: Cannot invoke "zombie.inventory.InventoryItem.setCondition(int)" because "<local3>" is null at InventoryItem.update line:830..

 

thats the line im talking about

 

for me thats wizard language but it clearly states something related to a inventory but how could i know that its a tin can....

i tested out wich mod caused the issue by disenableing all mods and enabeling one after another again.. it is indeed hydrocraft

 

finally i solved it after discovering this post (and by picking up the tincans in my garden)

so again thanks a lot guys

 

[Aradoexis]

I just made an account to tell you that this report saved my savegame or saved many hours of searching. Thank you!