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OaKleYz

1.16.3 Custom Modpack Crash While Chunk Loading

By OaKleYz, in Support & Bug Reports

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OaKleYz    1

OaKleYz
Posted (edited) 
[20Nov2020 21:44:18.861] [Worker-Main-13/ERROR] [net.minecraft.util.Util/]: Caught exception in thread Thread[Worker-Main-13,5,main]
java.lang.NullPointerException: null
	at net.minecraft.world.lighting.SectionLightStorage.func_215521_h(SourceFile:96) ~[?:?]
	at net.minecraft.world.lighting.LightEngine.func_215471_c(LightEngine.java:129) ~[?:?]
	at net.minecraft.world.lighting.LevelBasedGraph.func_215469_a(LevelBasedGraph.java:122) ~[?:?]
	at net.minecraft.world.lighting.BlockLightEngine.func_215623_a(BlockLightEngine.java:118) ~[?:?]
	at net.minecraft.world.lighting.WorldLightManager.func_215573_a(SourceFile:41) ~[?:?]
	at net.minecraft.world.server.ServerWorldLightManager.func_215579_a(SourceFile:135) ~[?:?]
	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[?:?]
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) ~[?:?]
	at net.minecraft.world.server.ServerWorldLightManager.func_223117_a(SourceFile:135) ~[?:?]
	at net.minecraft.world.server.ServerWorldLightManager.func_215603_b(SourceFile:170) ~[?:?]
	at net.minecraft.world.server.ServerWorldLightManager.func_223124_c(SourceFile:155) ~[?:?]
	at net.minecraft.util.concurrent.DelegatedTaskExecutor.func_213148_e(SourceFile:94) ~[?:?]
	at net.minecraft.util.concurrent.DelegatedTaskExecutor.func_213145_a(SourceFile:137) ~[?:?]
	at net.minecraft.util.concurrent.DelegatedTaskExecutor.run(SourceFile:105) ~[?:?]
	at java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1429) ~[?:?]
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290) ~[?:?]
	at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016) ~[?:?]
	at java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665) ~[?:?]
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598) ~[?:?]
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183) ~[?:?]

 

I am able to explore my server multiplayer world just fine for several minutes and then all the sudden it'll hang and crash. The same thing happens when I use a mod to try and pregen the world. Each seed I try seems to have a specific spot where the server just can't load a chunk and then it'll just always crash when I get close to it.

 

The above error is what I see in the console before the server watchdog kicks in. The attached crash report is what is given but I don't know that it's helpful because it seems to just talk about the watchdog event.

 

I have been testing out the mods you see in the crash report and everything works great with the exception of this occasional error. I am ready to start using the modpack but now I am afraid to explore the world :(

 

Edit:

Debug log: https://gist.github.com/aharrisw/90dc31749c3448e9e726ccc58960c1c9

crash-2020-11-21_02.10.15-server.txt

Edited by OaKleYz
Added debug log link

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DaemonUmbra    518

DaemonUmbra
Posted

The amount of data loading exceptions in this log is disgusting.

Remove Engineers Tools, start the server, stop the server, and provide debug.log again

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

Spoiler

Logs (Most issues require logs to diagnose):

Spoiler

Please post logs using one of the following sites (Thank you Lumber Wizard for the list):

https://gist.github.com/: 100MB Requires member (Free)

https://paste.gg/: 15MB

https://pastebin.com/: 512KB as guest, 10MB as Pro ($$$)

https://hastebin.com/: 400KB

Do NOT use sites like Mediafire, Dropbox, OneDrive, Google Drive, or a site that has a countdown before offering downloads.

 

What to provide:

...for Crashes and Runtime issues:

Minecraft 1.14.4 and newer:

Post debug.log

Older versions:

Please update...

 

...for Installer Issues:

Post your installer log, found in the same place you ran the installer

This log will be called either installer.log or named the same as the installer but with .log on the end

Note for Windows users:

Windows hides file extensions by default so the installer may appear without the .jar extension then when the .log is added the log will appear with the .jar extension

 

Where to get it:

Mojang Launcher: When using the Mojang launcher debug.log is found in .minecraft\logs.

 

Twitch Launcher: If you are using the Twitch Launcher, their configurations break Forge's log settings, fortunately there is an easier workaround than I originally thought, this works even with Twitch's installation of the Minecraft launcher as long as it is not launched THROUGH Twitch:

Spoiler
  1. Make sure you have the correct version of Forge installed (some packs are heavily dependent on one specific build of Forge)
  2. Make a launcher profile targeting this version of Forge.
  3. Set the launcher profile's GameDir property to the pack's instance folder (not the instances folder, the folder that has the pack's name on it).
  4. Now launch the pack through that profile and follow the "Mojang Launcher" instructions above.

Video:

Spoiler

 

 

 

or alternately, 

 

Fallback ("No logs are generated"):

If you don't see logs generated in the usual place, provide the launcher_log.txt from .minecraft

 

Server Not Starting:

Spoiler

If your server does not start or a command window appears and immediately goes away, run the jar manually and provide the output.

 

Reporting Illegal/Inappropriate Adfocus Ads:

Spoiler

Get a screenshot of the URL bar or copy/paste the whole URL into a thread on the General Discussion board with a description of the Ad.

Lex will need the Ad ID contained in that URL to report it to Adfocus' support team.

 

Posting your mod as a GitHub Repo:

Spoiler

When you have an issue with your mod the most helpful thing you can do when asking for help is to provide your code to those helping you. The most convenient way to do this is via GitHub or another source control hub.

When setting up a GitHub Repo it might seem easy to just upload everything, however this method has the potential for mistakes that could lead to trouble later on, it is recommended to use a Git client or to get comfortable with the Git command line. The following instructions will use the Git Command Line and as such they assume you already have it installed and that you have created a repository.

 

  1. Open a command prompt (CMD, Powershell, Terminal, etc).
  2. Navigate to the folder you extracted Forge’s MDK to (the one that had all the licenses in).
  3. Run the following commands:
    1. git init
    2. git remote add origin [Your Repository's URL]
      • In the case of GitHub it should look like: https://GitHub.com/[Your Username]/[Repo Name].git
    3. git fetch
    4. git checkout --track origin/master
    5. git stage *
    6. git commit -m "[Your commit message]"
    7. git push
  4. Navigate to GitHub and you should now see most of the files.
    • note that it is intentional that some are not synced with GitHub and this is done with the (hidden) .gitignore file that Forge’s MDK has provided (hence the strictness on which folder git init is run from)
  5. Now you can share your GitHub link with those who you are asking for help.

[Workaround line, please ignore]

 

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diesieben07    7459

diesieben07
Posted

The only thing I can gather from that log is that the last thing generating something seems to be Dungeon Crawl. This generation produces a bunch of warning and error log and then the game crashes. So I would try it without that mod.

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OaKleYz    1

OaKleYz
Posted

I tried without Dungeon Crawl and then also removed others like Ice and Fire / Quark since they also do their own structure generation. It still ends up crashing. I've given up :shrug:

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