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My game crashes right after opening it. I don't understand

I have problems

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The game crashed whilst initializing game
Error: java.lang.VerifyError: Bad type on operand stack


Here's the crash report. Please tell me what's going on


---- Minecraft Crash Report ----

WARNING: coremods are present:
  MicdoodlePlugin (MicdoodleCore-1.12.2.jar)
Contact their authors BEFORE contacting forge

// Daisy, daisy...

Time: 10/29/18 6:40 PM
Description: Initializing game

java.lang.VerifyError: Bad type on operand stack
Exception Details:
    net/minecraft/client/renderer/EntityRenderer.func_78472_g(F)V @91: invokestatic
    Type 'net/minecraft/world/World' (current frame, stack[0]) is not assignable to 'net/minecraft/client/multiplayer/WorldClient'
  Current Frame:
    bci: @91
    flags: { }
    locals: { 'net/minecraft/client/renderer/EntityRenderer', float, 'net/minecraft/world/World' }
    stack: { 'net/minecraft/world/World' }
    0x0000000: 2ab4 04a1 9904 152a b400 e3b4 0224 1304
    0x0000010: a4b6 022b 2ab4 00e3 b401 d64d 2cc6 03fc
    0x0000020: b804 a799 0037 2c2a b404 9f2a b401 0d2a
    0x0000030: b400 e3b4 01c0 b204 aab6 0435 23b8 04b0
    0x0000040: 9900 1a2a b400 fdb6 04b3 2a03 b504 a12a
    0x0000050: b400 e3b4 0224 b602 bfb1 2cb8 04b9 4625
    0x0000060: 1303 fe6a 1301 ad62 3804 0336 0515 0511
    0x0000070: 0100 a203 912c b404 bdb6 04c3 1505 1010
    0x0000080: 6c30 1704 6a38 062c b404 bdb6 04c3 1505
    0x0000090: 1010 7030 2ab4 049f 1301 e86a 1302 dd62
    0x00000a0: 6a38 072c b604 c69e 0012 2cb4 04bd b604
    0x00000b0: c315 0510 106c 3038 0617 0625 1304 c76a
    0x00000c0: 1304 c862 6a38 0817 0625 1304 c76a 1304
    0x00000d0: c862 6a38 0917 0717 0713 01a8 6a13 04c9
    0x00000e0: 6213 01a8 6a13 04c9 626a 380a 1707 1707
    0x00000f0: 1707 6a13 01a8 6a13 04c9 626a 380b 1708
    0x0000100: 1707 6238 0c17 0917 0a62 380d 1706 170b
    0x0000110: 6238 0e17 0c13 04ca 6a13 04cb 6238 0c17
    0x0000120: 0d13 04ca 6a13 04cb 6238 0d17 0e13 04ca
    0x0000130: 6a13 04cb 6238 0e2a b401 f40b 959e 004e
    0x0000140: 2ab4 01f6 2ab4 01f4 2ab4 01f6 6623 6a62
    0x0000150: 380f 170c 0c17 0f66 6a17 0c13 04cc 6a17
    0x0000160: 0f6a 6238 0c17 0d0c 170f 666a 170d 1301
    0x0000170: a86a 170f 6a62 380d 170e 0c17 0f66 6a17
    0x0000180: 0e13 01a8 6a17 0f6a 6238 0e2c b404 bdb6
    0x0000190: 04d0 b604 d504 a000 2713 04d6 1707 1304
    0x00001a0: d76a 6238 0c13 04d8 170a 1304 d76a 6238
    0x00001b0: 0d13 04d9 170b 1304 d76a 6238 0eb2 04dc
    0x00001c0: b601 5199 005b 06bc 0659 0317 0c51 5904
    0x00001d0: 170d 5159 0517 0e51 3a0f 2cb4 04bd b204
    0x00001e0: dc08 bd00 0459 0323 b803 2253 5904 25b8
    0x00001f0: 0322 5359 0517 06b8 0322 5359 0617 07b8
    0x0000200: 0322 5359 0719 0f53 b804 df57 190f 0330
    0x0000210: 380c 190f 0430 380d 190f 0530 380e 170c
    0x0000220: 0b0c b801 e738 0c17 0d0b 0cb8 01e7 380d
    0x0000230: 170e 0b0c b801 e738 0e2a b400 e3b4 01c0
    0x0000240: b204 aab6 0435 9900 6d2a 2ab4 00e3 b401
    0x0000250: c023 b604 e338 0f0c 170c 6e38 1017 100c
    0x0000260: 170d 6e95 9e00 090c 170d 6e38 1017 100c
    0x0000270: 170e 6e95 9e00 090c 170e 6e38 1017 0c0c
    0x0000280: 170f 666a 170c 1710 6a17 0f6a 6238 0c17
    0x0000290: 0d0c 170f 666a 170d 1710 6a17 0f6a 6238
    0x00002a0: 0d17 0e0c 170f 666a 170e 1710 6a17 0f6a
    0x00002b0: 6238 0e17 0c0c 959e 0006 0c38 0c17 0d0c
    0x00002c0: 959e 0006 0c38 0d17 0e0c 959e 0006 0c38
    0x00002d0: 0e2a b400 e3b4 019f b404 e638 0f0c 170c
    0x00002e0: 6638 100c 170d 6638 110c 170e 6638 120c
    0x00002f0: 1710 1710 6a17 106a 1710 6a66 3810 0c17
    0x0000300: 1117 116a 1711 6a17 116a 6638 110c 1712
    0x0000310: 1712 6a17 126a 1712 6a66 3812 170c 0c17
    0x0000320: 0f66 6a17 1017 0f6a 6238 0c17 0d0c 170f
    0x0000330: 666a 1711 170f 6a62 380d 170e 0c17 0f66
    0x0000340: 6a17 1217 0f6a 6238 0e17 0c13 04ca 6a13
    0x0000350: 04cb 6238 0c17 0d13 04ca 6a13 04cb 6238
    0x0000360: 0d17 0e13 04ca 6a13 04cb 6238 0e17 0c0c
    0x0000370: 959e 0006 0c38 0c17 0d0c 959e 0006 0c38
    0x0000380: 0d17 0e0c 959e 0006 0c38 0e17 0c0b 969c
    0x0000390: 0006 0b38 0c17 0d0b 969c 0006 0b38 0d17
    0x00003a0: 0e0b 969c 0006 0b38 0e17 0c2c b804 ea6a
    0x00003b0: 380c 170d 2cb8 04ed 6a38 0d17 0e2c b804
    0x00003c0: f06a 380e 1100 ff36 1317 0c13 04f1 6a8b
    0x00003d0: 3614 170d 1304 f16a 8b36 1517 0e13 04f1
    0x00003e0: 6a8b 3616 2ab4 010d 1505 1304 f215 1410
    0x00003f0: 1078 8015 1510 0878 8015 1680 4f84 0501
    0x0000400: a7fc 6d2a b400 fdb6 04b3 2a03 b504 a12a
    0x0000410: b400 e3b4 0224 b602 bfb1               
  Stackmap Table:

    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:522)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:377)
    at net.minecraft.client.main.Main.main(SourceFile:123)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Client thread
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:522)

-- Initialization --
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:377)
    at net.minecraft.client.main.Main.main(SourceFile:123)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
    Minecraft Version: 1.12.2
    Operating System: Mac OS X (x86_64) version 10.13.6
    Java Version: 1.8.0_74, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 407412784 bytes (388 MB) / 1946157056 bytes (1856 MB) up to 4294967296 bytes (4096 MB)
    JVM Flags: 7 total; -Xmx4G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP 9.42 Powered by Forge Optifine OptiFine_1.12.2_HD_U_E2 21 mods loaded, 21 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

    | State | ID                  | Version      | Source                                          | Signature                                |
    |:----- |:------------------- |:------------ |:----------------------------------------------- |:---------------------------------------- |
    | UCH   | minecraft           | 1.12.2       | minecraft.jar                                   | None                                     |
    | UCH   | mcp                 | 9.42         | minecraft.jar                                   | None                                     |
    | UCH   | FML                 |    | forge-1.12.2-                   | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | UCH   | forge               | | forge-1.12.2-                   | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | UCH   | micdoodlecore       |              | minecraft.jar                                   | None                                     |
    | UCH   | betterbuilderswands | 0.11.1       | BetterBuildersWands-1.12- | None                                     |
    | UCH   | bibliocraft         | 2.4.4        | BiblioCraft[v2.4.4][MC1.12.2].jar               | None                                     |
    | UCH   | biomesoplenty       |   | BiomesOPlenty-1.12.2-   | None                                     |
    | UCH   | ptrmodellib         | 1.0.0        | Decocraft-2.5.1_1.12.2.jar                      | None                                     |
    | UCH   | props               | 2.5.1        | Decocraft-2.5.1_1.12.2.jar                      | None                                     |
    | UCH   | extremeanimals      |      | ExtremeAnimals-               | None                                     |
    | UCH   | galacticraftcore    |    | Galacticraft-Mod-1.12.2.jar                     | None                                     |
    | UCH   | galacticraftplanets |    | Galacticraft-Planets-Mod-1.12.2.jar             | None                                     |
    | UCH   | kagic               | X11p13       | kagic-X11p13.jar                                | None                                     |
    | UCH   | radixcore           | 1.12.x-2.2.1 | RadixCore-1.12.2.jar                            | None                                     |
    | UCH   | mca                 | 1.12.2-5.3.1 | MCA-1.12.x-5.3.1-universal.jar                  | None                                     |
    | UCH   | mocreatures         | 12.0.3       | Mo-Creatures-Mod-1.12.2.jar                     | None                                     |
    | UCH   | moreplayermodels    | 1.12.2       | MorePlayerModels_1.12.2(18jan18).jar            | None                                     |
    | UCH   | harvestcraft        | 1.12.1c      | Pam's HarvestCraft 1.12.1c.jar                  | None                                     |
    | UCH   | secretroomsmod      | 5.1.8        | secretroomsmod-1.12.2-5.1.8.jar                 | None                                     |
    | UCH   | xaeroworldmap       | 1.2.5        | XaerosWorldMap_1.2.5_Forge_1.12.jar             | None                                     |

    Loaded coremods (and transformers): 
MicdoodlePlugin (MicdoodleCore-1.12.2.jar)
    GL info: ' Vendor: 'Intel Inc.' Version: '2.1 INTEL-10.36.19' Renderer: 'Intel(R) HD Graphics 6000'
    Launched Version: 1.12.2-forge1.12.2-
    LWJGL: 2.9.2
    OpenGL: Intel(R) HD Graphics 6000 GL version 2.1 INTEL-10.36.19, Intel Inc.
    GL Caps: VboRegions not supported, missing: OpenGL 1.3, ARB_copy_buffer
Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

    Using VBOs: Yes
    Is Modded: Definitely; Client brand changed to 'fml,forge'
    Type: Client (map_client.txt)
    Resource Packs: 
    Current Language: English (US)
    Profiler Position: N/A (disabled)
    CPU: 4x Intel(R) Core(TM) i5-5250U CPU @ 1.60GHz
    OptiFine Version: OptiFine_1.12.2_HD_U_E2
    OptiFine Build: 20180728-185429
    Render Distance Chunks: 12
    Mipmaps: 4
    Anisotropic Filtering: 1
    Antialiasing: 0
    Multitexture: false
    Shaders: null
    OpenGlVersion: 2.1 INTEL-10.36.19
    OpenGlRenderer: Intel(R) HD Graphics 6000
    OpenGlVendor: Intel Inc.
    CpuCount: 4

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Broken coremod, I can't tell exactly which.

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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