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Error when loading or creating a world. V-1.16.1


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Hello, as you may know by the title, there's an error while loading a world on my mod pack. 


The message states



Errors in currently selected datapacks prevented world from loading.

You can either try to load only with vanilla datapack ("safe mode") or go back to title screen and fix it manually.



I would like to know what I did. It seems this only happens when I remove a mod.


This happened before when I removed a mod, which deals with only weather (Better Weather), it doesn't add any new blocks, items, or features, except Blizzards, fog, and acid rain. I added it back, then everything returned back to normal.

Then I just recently removed RoFl2Leather (Rotten Flesh To Leather) and this is happening again. I don't know if it's a bug or not. Plus apparently in 1.16.X the mods list also shows up in the Datapacks tab when creating a world. And I don't have any other datapacks except for the mods I have installed on my modpack.

I hope that this can be understood and resolved.

Here's the list of mods I have on my mod pack. And I am going to post my latest.log (The debug.log was not in the logs file, so I can't provide it)

The log that I got is 2020-09-23-2.log I could not post my latest.log due to it exceeding the limit.


Mod List

Mod                                                                                        Author                                                                                File

☃ Snow! Real Magic! Snownee_ SnowRealMagic-1.16.1-2.0.1.jar
🥝 Kiwi Snownee_ Kiwi-1.16.1-3.2.1.jar
Abnormals Core SmellyModder Abnormals-Core-1.16.1-2.0.3.jar
AI Improvements DarkGuardsman AI-Improvements-1.16.1-0.3.0.jar
AmbientSounds 3 CreativeMD AmbientSounds_v3.0.20_mc1.16.2.jar
Animalium vadis365 Animalium-0.6.0.jar
AppleSkin squeek502 AppleSkin-mc1.16.1-forge-1.0.14.jar
Aquaculture 2 Shadowclaimer Aquaculture-1.16.1-2.0.20.jar
Atmospheric paradiscal Atmospheric-1.16.1-2.0.0.jar
AutoRegLib Vazkii AutoRegLib-1.6-43.jar
Autumnity martianarchitecture Autumnity-1.16.1-1.4.1.jar
Bad Wither No Cookie - Reloaded Kreezxil bwncr-1.16.1-3.8.15.jar
Bamboo Blocks bageldotjpg Bamboo-Blocks-1.16.1-2.0.1.jar
Basalt Blocks Legopitstop BasaltBlocks-1.16.1-1.0.2.jar
Basic Nether Ores [Forge/Fabric] cScotPlay BasicNetherOres-1.16.1-5.1.0.jar
Beekeeper MacTso Beekeeper-1.16.1-
Berry Good minecraftabnormals Berry-Good-1.16.1-3.0.0.jar
Better Advancements way2muchnoise BetterAdvancements-1.16.1-
Better Respawn henkelmax better_respawn-1.16.1-1.0.0.jar
Better Weather Corgi_Taco betterweather-1.0.2.jar
Better With Minecolonies [Forge] Kreezxil betterwithminecolonies-1.16.1-1.15.16.jar
Biomes O' Plenty Forstride BiomesOPlenty-1.16.1-
Bookshelf DarkhaxDev Bookshelf-1.16.1-6.3.20.jar
Botania Vazkii Botania-1.16.1-403.1.jar
Botany Pots DarkhaxDev BotanyPots-1.16.1-3.0.7.jar
Buzzier Bees bageldotjpg Buzzier-Bees-1.16.1-2.1.0.jar
Caelus API (Forge) TheIllusiveC4 caelus-FORGE-1.16.1-2.0-beta7.jar
Clay WorldGen EwyBoy Clay WorldGen-1.1.0-1.16.1.jar
Client Tweaks BlayTheNinth ClientTweaks_1.16.1-5.0.0.jar
Clumps Jaredlll08 Clumps-
Collective Serilum collective-1.16.1-1.35.jar
Comforts TheIllusiveC4 comforts-FORGE-1.16.1-
Construction Blocks Legopitstop ConstructionBlocks-1.16.1-1.0.0-pre2.jar
Controlling Jaredlll08 Controlling-
Cooking for Blockheads BlayTheNinth CookingForBlockheads_1.16.1-9.0.2.jar
Cosmetic Armor Reworked LainMI CosmeticArmorReworked-1.16.1-v1b.jar
Crafting Station tfarecnim craftingstation-4.0.0a.jar
CraftTweaker Jaredlll08 CraftTweaker-1.16.1-
Cucumber Library BlakeBr0 Cucumber-1.16.1-4.0.2.jar
Curios API (Forge) TheIllusiveC4 curios-FORGE-1.16.1-
Curious Elytra (Forge) TheIllusiveC4 curiouselytra-FORGE-1.16.1-3.0.jar
Cyclic Lothrazar Cyclic-1.16.1-0.6.1.jar
Decorative Blocks stohun decorative_blocks-1.16.1-1.5.jar
Ding ohaiiChun Ding-1.16.1-1.2.0.jar
Double Slabs CJMinecraft01 DoubleSlabs-1.16-3.3.3.jar
EmbellishCraft Mapper embellishcraft-1.16.1-
Enhanced Mushrooms Ep1c312 Enhanced-Mushrooms-1.16.1-v2.0.8.jar
Et Tu, Brute? the_infamous_1 ettubrute-1.16.1-1.0.6.jar
Excavation bloop428 excavation-1.5.2.jar
Extra Boats martianarchitecture Extra-Boats-1.16.1-1.4.1.jar
Extra Tags tfarecnim extratags-2.1g.jar
FallingTree RakSrinaNa FallingTree-Forge-1.16.1-2.4.0.jar
Farming for Blockheads BlayTheNinth FarmingForBlockheads_1.16.1-7.0.2.jar
FastFurnace Shadows_of_Fire FastFurnace-1.16.1-4.1.2.jar
FastWorkbench Shadows_of_Fire FastWorkbench-1.16.1-4.2.0.jar
FPS Reducer bre2el FpsReducer-mc1.16.1-1.17.jar
Fruitful Ep1c312 Fruitful-1.16.1-v1.3.0.jar
FTB Backups LatvianModder ftb-backups-
Gotta Climb Fast! Rongmario gottaclimbfast-mc1.16-1.1-forge.jar
Hwyla TehNut Hwyla-forge-1.10.10-B77_1.16.1.jar
Immersive Engineering BluSunrize ImmersiveEngineering-1.16.1-4.0.1-120.jar
Incubation martianarchitecture Incubation-1.16.1-1.1.0.jar
Industrial Foregoing Buuz135 industrial-foregoing-1.16.1-3.0.5-7e692e4.jar
Inventory Tweaks Renewed David1544 invtweaks-1.16.2-1.0.0.jar
JEI Enchantment Info Phylogeny JEIEnchantmentInfo-1.16.1-1.2.0.jar
JEI Integration SnowShock35 jeiintegration_1.16.1-
JEITweaker Jaredlll08 JEITweaker-1.16.1-
Just Enough Items (JEI) mezz jei-1.16.1-
Just Enough Resources (JER) way2muchnoise JustEnoughResources-1.16.1-
KleeSlabs BlayTheNinth KleeSlabs_1.16.1-9.0.0.jar
Macaw's Bridges sketch_macaw mcw-bridges-1.0.4-mc1.16.1.jar
Macaw's Doors sketch_macaw mcw-doors-1.0.0-mc1.16.1.jar
Macaw's Roofs sketch_macaw mcws-roofs-1.16.1-v2.0.0.jar
Macaw's Windows sketch_macaw mcws-win-1.16.1-v1.0.2.jar
Mapper Base Mapper mapperbase-1.16.1-
Mekanism bradyaidanc Mekanism-1.16.1-
Mekanism Additions bradyaidanc MekanismAdditions-1.16.1-
Mekanism Generators bradyaidanc MekanismGenerators-1.16.1-
Mekanism Tools bradyaidanc MekanismTools-1.16.1-
MineColonies H3lay minecolonies-0.13.258-ALPHA-universal.jar
MinecraftCapes Mod james090500 MinecraftCapes Forge 1.16.1-v10.jar
More Living Things Buecher_wurm livingthings-1.16.1-1.0.3.jar
Mouse Tweaks YaLTeR MouseTweaks-2.13-mc1.16.1.jar
MrCrayfish's Furniture Mod MrCrayfish furniture-7.0.0-pre18-1.16.1.jar
MrCrayfish's Vehicle Mod MrCrayfish vehicle-mod-0.45.0-1.16.1.jar
Neat Vazkii Neat 1.7-23.jar
NetherPortalFix BlayTheNinth NetherPortalFix_1.16.1-7.0.1.jar
No Hostiles Around Campfire Serilum nhacampfire_1.16-2.3.jar
Obfuscate MrCrayfish obfuscate-0.5.0-1.16.1.jar
OldJavaWarning DarkhaxDev OldJavaWarning-1.16.1-4.0.1.jar
Pane In The Glass MongoTheElder pitg-1.16.1-1.3.0.jar
Patchouli Vazkii Patchouli-1.16-39.jar
Pickle Tweaks BlakeBr0 PickleTweaks-1.16.1-5.0.1.jar
Placebo Shadows_of_Fire Placebo-1.16.1-4.1.3.jar
Pretty Beaches BlayTheNinth PrettyBeaches_1.16.1-5.0.0.jar
Quark Vazkii Quark-r2.2-264.jar
Quark Oddities Vazkii QuarkOddities-1.15.2.jar
RandomPatches TheRandomLabs randompatches-1.16.1-
Reap Mod henkelmax reap-1.16.1-1.0.2.jar
Refined Storage raoulvdberge refinedstorage-1.9.2b.jar
Refined Storage Addons raoulvdberge refinedstorageaddons-0.7.jar
Savage & Ravage Farcr Savage-and-Ravage-1.16.1-2.0.0.jar
Security Craft Geforce132 [1.16.1] SecurityCraft v1.8.19.3.jar
Server Utilities ArrowsendGaming Server_Utils-1.16.1-1.3.19.jar
Silent Lib SilentChaos512 SilentLib-1.16.1-4.7.1+59.jar
Silent's Mechanisms SilentChaos512 SilentMechanisms-1.16.1-0.8.1+62.jar
Simple Farming enemeez1 simplefarming-1.16.1-1.3.2.jar
Simply Backpacks Flanks255 simplybackpacks-1.16.1-1.4.10.jar
Simply Jetpacks 2 Tomson124 SimplyJetpacks2-1.16.1-
Snow Under Trees bl4ckscor3 snowundertrees-1.16.1-v1.1.1.jar
Sound Filters Tmtravlr SoundFilters-0.14_for_1.16.jar
Storage Drawers Texelsaur StorageDrawers-1.16.2-8.1.0.jar
Structurize H3lay structurize-0.13.65-ALPHA.jar
Stupid Horse Stand Still Lothrazar horsestandstill-1.16.1-1.0.1.jar
SwingThroughGrass exidex swingthroughgrass-1.16.1-1.5.1.jar
The Endergetic Expansion endergized The-Endergetic-Expansion-1.16.1-2.0.0.jar
Titanium hrznstudio titanium-1.16.1-3.0.4.jar
Torch Slabs Mod EndlesNights torchslabmod-1.16.1_v1.6.16.jar
Ultimate Car Mod henkelmax car-1.16.1-1.0.11.jar
Upgrade Aquatic minecraftabnormals Upgrade-Aquatic-1.16.1-2.0.1.jar
Valhelsia Structures ValhelsiaTeam valhelsia_structures-16.0.2.jar
VanillaTweaks StrikerRocker VanillaTweaks-1.16.1-1.5.31.jar
Villagers Respawn MacTso VillagersRespawn-1.16.1-
VoxelMap MamiyaOtaru forgemod_VoxelMap-1.10.9_for_1.16.1.jar
Waila Harvestability squeek502 WailaHarvestability-mc1.16.1-forge-1.1.12.jar
Wither Skeleton Tweaks Shadows_of_Fire WitherSkeletonTweaks-1.16.1-5.0.0.jar
YUNG's Better Caves (Forge) YUNGNICKYOUNG BetterCaves-1.16.1-1.0.jar
YUNG's Better Mineshafts (Forge) YUNGNICKYOUNG BetterMineshaftsForge-1.16.1-1.3.jar


Edited by iShockMC
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Just .minecraft/saves/SaveName, and please do provided it as a zip rather than a folder

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.


Logs (Most issues require logs to diagnose):


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://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.


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

  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.






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:


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:


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:


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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Alright, so load it up in .minecraft then send the debug.log folder? Got it.


13 hours ago, DaemonUmbra said:

Just .minecraft/saves/SaveName, and please do provided it as a zip rather than a folder


15 hours ago, diesieben07 said:

Is the modpack publicly available? If so: Please upload your world somewhere.

Also sorry for the late reply, I had baseball and I got home late last night. And I wanted to go to bed because I was exhausted.

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So should I re-add the mod I removed? Or remove MrCrayfish's Vehicle Mod since I do already have Ultimate Cars mod.

Because it works if I re-add the mod I removed, but I really don't want to re-add RoFl2Leather because it makes getting leather harder. But if I really have to, I will so all my work isn't to waste.

Edited by iShockMC
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