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downstream project itzg/minecraft-server fails to accept version 0.5.16 or above #638

Description

@jagprog7

Your CleanroomMC Discord Username

No response

Cleanroom Version

several versions due to nature of ticket

Java Version

Java 25

Graphics Card Vendor

Other (Please Specify)

Bug Report

FORGE_INSTALLER_URL's checked

given that 0.5.16 is not ok and 0.5.15 is ok and this is just a minor version bump (backwards compatible) I assume this is an unintentional regression on Cleanroom's side

# NO https://github.com/CleanroomMC/Cleanroom/releases/download/0.6.13-alpha/cleanroom-0.6.13-alpha-installer.jar
# NO https://github.com/CleanroomMC/Cleanroom/releases/download/0.6.0-alpha/cleanroom-0.6.0-alpha-installer.jar
# NO https://github.com/CleanroomMC/Cleanroom/releases/download/0.5.16-alpha/cleanroom-0.5.16-alpha-installer.jar

# OK https://github.com/CleanroomMC/Cleanroom/releases/download/0.5.15-alpha/cleanroom-0.5.15-alpha-installer.jar
# OK https://github.com/CleanroomMC/Cleanroom/releases/download/0.5.14-alpha/cleanroom-0.5.14-alpha-installer.jar
# OK https://github.com/CleanroomMC/Cleanroom/releases/download/0.5.11-alpha/cleanroom-0.5.11-alpha-installer.jar
# OK https://github.com/CleanroomMC/Cleanroom/releases/download/0.5.7-alpha/cleanroom-0.5.7-alpha-installer.jar
# OK https://github.com/CleanroomMC/Cleanroom/releases/download/0.5.3-alpha/cleanroom-0.5.3-alpha-installer.jar
# OK https://github.com/CleanroomMC/Cleanroom/releases/download/0.4.4-alpha/cleanroom-0.4.4-alpha-installer.jar

on specifically 0.5.16 and above something is breaking the downstream install-forge command

example yaml:

version: "3"
services:
  mc:
    image: itzg/minecraft-server:java25
    environment:
      EULA: "true"
      TYPE: FORGE
      VERSION: "1.12.2"
      FORGE_INSTALLER_URL: https://github.com/CleanroomMC/Cleanroom/releases/download/0.6.0-alpha/cleanroom-0.6.0-alpha-installer.jar
      MODS: |
        https://github.com/CleanroomMC/Fugue/releases/download/0.24.4/+Fugue-0.24.4.jar
        https://github.com/CleanroomMC/Scalar/releases/download/2.11.1/scalar-1.12.2-2.11.1.jar
      GENERIC_PACK: /pack.zip

error:

mc-1              | [mc-image-helper] 02:40:20.261 ERROR : 'install-forge' command failed. Version is 1.69.1
mc-1              | java.lang.NullPointerException: Cannot invoke "com.fasterxml.jackson.databind.JsonNode.isMissingNode()" because "inheritsFromNode" is null
mc-1              |     at me.itzg.helpers.forge.ProvidedInstallerResolver.extractFromVersionJson(ProvidedInstallerResolver.java:114)
mc-1              |     at me.itzg.helpers.files.IoStreams.readFileFromZip(IoStreams.java:37)
mc-1              |     at me.itzg.helpers.forge.ProvidedInstallerResolver.extractVersion(ProvidedInstallerResolver.java:61)
mc-1              |     at me.itzg.helpers.forge.ProvidedInstallerResolver.resolve(ProvidedInstallerResolver.java:33)
mc-1              |     at me.itzg.helpers.forge.ForgeLikeInstaller.install(ForgeLikeInstaller.java:69)
mc-1              |     at me.itzg.helpers.forge.InstallForgeCommand.call(InstallForgeCommand.java:113)
mc-1              |     at me.itzg.helpers.forge.InstallForgeCommand.call(InstallForgeCommand.java:19)
mc-1              |     at picocli.CommandLine.executeUserObject(CommandLine.java:2031)
mc-1              |     at picocli.CommandLine.access$1500(CommandLine.java:148)
mc-1              |     at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2469)
mc-1              |     at picocli.CommandLine$RunLast.handle(CommandLine.java:2461)
mc-1              |     at picocli.CommandLine$RunLast.handle(CommandLine.java:2423)
mc-1              |     at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
mc-1              |     at picocli.CommandLine$RunLast.execute(CommandLine.java:2425)
mc-1              |     at picocli.CommandLine.execute(CommandLine.java:2174)
mc-1              |     at me.itzg.helpers.McImageHelper.main(McImageHelper.java:191)
mc-1              | [init] [ERROR] Failed to install forge from https://github.com/CleanroomMC/Cleanroom/releases/download/0.6.0-alpha/cleanroom-0.6.0-alpha-installer.jar

Mod List

n/a

Final Checklist

  • I have searched the issues and haven't found a similar issue.
  • I have read the readme and know that what is action build.
  • I have installed Fugue and it didn't fix my issue.
  • I have installed Scalar Legacy and it didn't fix my issue.
  • I have switched my Forgelin and LibrarianLib to continuous versions(check readme for more detail).
  • I am running a test build from Cleanroom Github Actions. (Or, if I've compiled it myself I plan to fix the issue)
  • I did not use PCL/PCLCE or other unsupported launchers.
    我没有使用 PCL/PCLCE 等其他未被支持的启动器。

Activity

  1. jagprog7 commented on Sep 27, 2026

    @jagprog7
    Author

    question: is the issue on cleanroom's side or itzg's side

  2. KorewaLidesu commented on Sep 27, 2026

    @KorewaLidesu
    Collaborator

    Can you provide the full logs? This look like itzg issue, not our.

  3. jagprog7 commented on Sep 27, 2026

    @jagprog7
    Author

    @KorewaLidesu

    error full logs
    john@zeus:~/modpack-server$ docker compose up
    WARN[0000] /home/john/modpack-server/compose.yml: the attribute `version` is obsolete, it will be ignored, please remove it to avoid potential confusion 
    [+] up 1/1
     ✔ Container modpack-server-mc-1 Recreated                                                                                                                                                                                                                0.1s 
    Attaching to backups-1, mc-1, restore-backup-1
    restore-backup-1  | No restore needed
    Container modpack-server-restore-backup-1 Waiting 
    restore-backup-1 exited with code 0
    Container modpack-server-restore-backup-1 Exited 
    Container modpack-server-mc-1 Waiting 
    mc-1              | [init] Running as uid=1000 gid=1000 with /data as 'drwxr-xr-x 14 1000 1000 4096 Sep 27 02:38 /data'
    mc-1              | [init] Image info: buildtime=2026-09-19T13:42:19.476Z,version=java25,revision=94494ed74431d6f68203344cce8860175e9a2bca
    mc-1              | [init] Autostop functionality enabled
    mc-1              | [init] Resolving type given FORGE
    mc-1              | [mc-image-helper] 02:40:20.261 ERROR : 'install-forge' command failed. Version is 1.69.1
    mc-1              | java.lang.NullPointerException: Cannot invoke "com.fasterxml.jackson.databind.JsonNode.isMissingNode()" because "inheritsFromNode" is null
    mc-1              |     at me.itzg.helpers.forge.ProvidedInstallerResolver.extractFromVersionJson(ProvidedInstallerResolver.java:114)
    mc-1              |     at me.itzg.helpers.files.IoStreams.readFileFromZip(IoStreams.java:37)
    mc-1              |     at me.itzg.helpers.forge.ProvidedInstallerResolver.extractVersion(ProvidedInstallerResolver.java:61)
    mc-1              |     at me.itzg.helpers.forge.ProvidedInstallerResolver.resolve(ProvidedInstallerResolver.java:33)
    mc-1              |     at me.itzg.helpers.forge.ForgeLikeInstaller.install(ForgeLikeInstaller.java:69)
    mc-1              |     at me.itzg.helpers.forge.InstallForgeCommand.call(InstallForgeCommand.java:113)
    mc-1              |     at me.itzg.helpers.forge.InstallForgeCommand.call(InstallForgeCommand.java:19)
    mc-1              |     at picocli.CommandLine.executeUserObject(CommandLine.java:2031)
    mc-1              |     at picocli.CommandLine.access$1500(CommandLine.java:148)
    mc-1              |     at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2469)
    mc-1              |     at picocli.CommandLine$RunLast.handle(CommandLine.java:2461)
    mc-1              |     at picocli.CommandLine$RunLast.handle(CommandLine.java:2423)
    mc-1              |     at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
    mc-1              |     at picocli.CommandLine$RunLast.execute(CommandLine.java:2425)
    mc-1              |     at picocli.CommandLine.execute(CommandLine.java:2174)
    mc-1              |     at me.itzg.helpers.McImageHelper.main(McImageHelper.java:191)
    mc-1              | [init] [ERROR] Failed to install forge from https://github.com/CleanroomMC/Cleanroom/releases/download/0.6.0-alpha/cleanroom-0.6.0-alpha-installer.jar 
    mc-1 exited with code 1
    Container modpack-server-mc-1 Error dependency mc failed to start
    dependency failed to start: container modpack-server-mc-1 exited (1)
    john@zeus:~/modpack-server$ 
    
    ok logs for comparison, truncated (using an OK version as mentioned above)
    WARN[0000] /home/john/modpack-server/compose.yml: the attribute `version` is obsolete, it will be ignored, please remove it to avoid potential confusion 
    [+] up 1/1
     ✔ Container modpack-server-mc-1 Recreated                                                                                                                                                                                                                                             0.1s 
    Attaching to backups-1, mc-1, restore-backup-1
    restore-backup-1  | No restore needed
    Container modpack-server-restore-backup-1 Waiting 
    restore-backup-1 exited with code 0
    Container modpack-server-restore-backup-1 Exited 
    Container modpack-server-mc-1 Waiting 
    mc-1              | [init] Running as uid=1000 gid=1000 with /data as 'drwxr-xr-x 14 1000 1000 4096 Sep 27 02:38 /data'
    mc-1              | [init] Image info: buildtime=2026-09-19T13:42:19.476Z,version=java25,revision=94494ed74431d6f68203344cce8860175e9a2bca
    mc-1              | [init] Autostop functionality enabled
    mc-1              | [init] Resolving type given FORGE
    mc-1              | [mc-image-helper] 04:29:52.240 INFO  : Re-installing Forge due to version change from MC 1.12.2/Forge 14.23.5.2859 to MC 1.12.2/Forge 0.5.15-alpha
    mc-1              | [mc-image-helper] 04:29:52.242 INFO  : Running cleanroom 0.5.15-alpha installer for Minecraft 1.12.2. This might take a while...
    mc-1              | [mc-image-helper] 04:29:56.870 INFO  : The file /data/mods/+Fugue-0.24.4.jar is already up to date
    mc-1              | [mc-image-helper] 04:29:56.870 INFO  : The file /data/mods/scalar-1.12.2-2.11.1.jar is already up to date
    mc-1              | [init] Checking if generic packs are up to date
    mc-1              | [init] Copying any mods from /mods to /data/mods
    mc-1              | [init] Copying any configs from /config to /data/config
    mc-1              | [init] Enabling whitelist functionality
    mc-1              | [mc-image-helper] 04:30:01.558 INFO  : Created/updated 1 property in /data/server.properties
    mc-1              | [init] Generating log4j2.xml from template in /data/log4j2.xml
    mc-1              | [init] Setting initial memory to 1G and max to 10G
    mc-1              | [init] Starting the Minecraft server...
    mc-1              | [Log4jPatcher] [INFO] Transforming org/apache/logging/log4j/core/pattern/MessagePatternConverter
    mc-1              | [Log4jPatcher] [WARN]  Unable to find noLookups:Z field in org/apache/logging/log4j/core/pattern/MessagePatternConverter
    mc-1              | [Log4jPatcher] [INFO] Transforming org/apache/logging/log4j/core/lookup/JndiLookup
    mc-1              | [04:30:02] [main/INFO]: Loading tweak name net.minecraftforge.fml.common.launcher.FMLServerTweaker
    mc-1              | [04:30:02] [main/INFO]: Initializing Mixins...
    mc-1              | [04:30:02] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.8.7 Source=jar:file:/data/libraries/com/cleanroommc/sponge-mixin/0.20.12+mixin.0.8.7/sponge-mixin-0.20.12+mixin.0.8.7.jar!/org/spongepowered/asm/mixin/MixinEnvironment.class Service=LaunchWrapper Env=UNKNOWN
    mc-1              | [04:30:02] [main/INFO]: Initializing MixinExtras...
    mc-1              | [04:30:02] [main/INFO]: Using primary tweak name net.minecraftforge.fml.common.launcher.FMLServerTweaker
    mc-1              | [04:30:02] [main/INFO]: Loading tweak name org.spongepowered.asm.mixin.EnvironmentStateTweaker
    mc-1              | [04:30:02] [main/INFO]: Calling tweak net.minecraftforge.fml.common.launcher.FMLServerTweaker@5974109
    mc-1              | [04:30:02] [main/INFO]: Jar location: file:/data/cleanroom-0.5.15-alpha.jar
    mc-1              | [04:30:02] [main/INFO]: Forge Mod Loader version 14.23.5.2864 for Minecraft 1.12.2 loading
    mc-1              | [04:30:02] [main/INFO]: Cleanroom version 0.5.15-alpha
    mc-1              | [04:30:02] [main/INFO]: Java is OpenJDK 64-Bit Server VM, version 25.0.4, running on Linux:amd64:5.15.0-135-generic, installed at /opt/java/openjdk
    mc-1              | [04:30:03] [main/INFO]: Searching /data/./mods for mods
    mc-1              | [04:30:03] [main/INFO]: Searching /data/./mods/1.12.2 for mods
    mc-1              | [04:30:03] [main/WARN]: The mod with loading plugin com.cleanroommc.configanytime.ConfigAnytimePlugin is in blacklist and won't be loaded. Check forge_early.cfg for more info.
    mc-1              | [04:30:03] [main/WARN]: The mod with loading plugin zone.rong.mixinbooter.MixinBooterPlugin is in blacklist and won't be loaded. Check forge_early.cfg for more info.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in !Red-Core-MC-1.8-1.12-0.7.1.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in +Fugue-0.24.4.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in Alfheim-1.6.jar.
    mc-1              | [04:30:03] [main/INFO]: Loading config hijacker dev.redstudio.alfheim.asm.AlfheimPlugin.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in AquaAcrobatics-1.15.4.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in Bubbles-2.4.10.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in CTM-MC1.12.2-1.0.2.31.jar.
    mc-1              | [04:30:03] [main/INFO]: Loading tweaker org.spongepowered.asm.launch.MixinTweaker from DynamicSurroundings-1.12.2-3.6.1.0.jar
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in DynamicSurroundings-1.12.2-3.6.1.0.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in Fixeroo-2.3.7.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in Forgelin-Continuous-2.4.20.0.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in HammerLib-1.12.2-12.2.66.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in lemonskin-3.1.0.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in letmedespawn-1.12.2-forge-1.0.2.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in loliasm-5.33.jar.
    mc-1              | [04:30:03] [main/INFO]: Lolis are on the server-side.
    mc-1              | [04:30:03] [main/INFO]: Lolis are preparing and loading in mixins since Rongmario's too lazy to write pure ASM at times despite the mod being called 'LoliASM'
    mc-1              | [04:30:03] [main/WARN]: Replacing CA Certs with an updated one...
    mc-1              | [04:30:03] [main/INFO]: Initializing StacktraceDeobfuscator...
    mc-1              | [04:30:03] [main/INFO]: Initialized StacktraceDeobfuscator.
    mc-1              | [04:30:03] [main/INFO]: Installing DeobfuscatingRewritePolicy...
    mc-1              | [04:30:03] [main/INFO]: Installed DeobfuscatingRewritePolicy.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in Quark-r1.6-179.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in ReachFix-1.12.2-1.1.3.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in ResourceLoader-MC1.12.1-1.5.3.jar.
    mc-1              | [04:30:03] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in UniversalTweaks-1.12.2-1.21.0.jar.
    mc-1              | [04:30:04] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in vintagefix-0.7.1.jar.
    mc-1              | [04:30:04] [main/INFO]: Loading tweaker org.spongepowered.asm.launch.MixinTweaker from WolfArmorAndStorage-1.12.2-3.8.0-universal-signed.jar
    mc-1              | [04:30:04] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in WolfArmorAndStorage-1.12.2-3.8.0-universal-signed.jar.
    mc-1              | [04:30:04] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in xaerolib-forge-1.12.2-1.7.3.jar.
    mc-1              | [04:30:04] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in xaerominimap-forge-1.12.2-26.5.1.jar.
    mc-1              | [04:30:04] [main/INFO]: Found FMLCorePluginContainsFMLMod marker in xaeroworldmap-forge-1.12.2-1.46.0.jar.
    mc-1              | [04:30:04] [main/INFO]: Calling tweak org.spongepowered.asm.mixin.EnvironmentStateTweaker@468be356
    mc-1              | [04:30:04] [main/INFO]: Loading tweak name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
    mc-1              | [04:30:04] [main/INFO]: Loading tweak name org.spongepowered.asm.launch.MixinTweaker
    mc-1              | [04:30:04] [main/INFO]: Loading tweak name com.cleanroommc.fugue.common.LateBootstrapTweaker
    mc-1              | [04:30:04] [main/WARN]: Tweak name org.spongepowered.asm.launch.MixinTweaker has already been visited -- skipping
    mc-1              | [04:30:04] [main/WARN]: Tweak name org.spongepowered.asm.launch.MixinTweaker has already been visited -- skipping
    mc-1              | [04:30:04] [main/INFO]: Loading tweak name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
    mc-1              | [04:30:04] [main/INFO]: Calling tweak net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker@23940f86
    mc-1              | [04:30:04] [main/INFO]: Calling tweak Red Core
    mc-1              | [04:30:04] [main/INFO]: Calling tweak UniversalTweaksCore
    mc-1              | [04:30:04] [main/INFO]: Calling tweak net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker@23940f86
    mc-1              | [04:30:04] [main/INFO]: Calling tweak TransformLoader
    mc-1              | [04:30:04] [main/INFO]: Calling tweak FMLCorePlugin
    mc-1              | [04:30:04] [ForkJoinPool.commonPool-worker-1/INFO]: Loaded from source 0
    mc-1              | [04:30:05] [main/INFO]: Initialised Mixin FML Remapper Adapter with net.minecraftforge.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper@64942607
    mc-1              | [04:30:05] [main/INFO]: FML appears to be missing any signature data. This is expected, don't worry.
    mc-1              | [04:30:05] [main/INFO]: Calling tweak FMLForgePlugin
    mc-1              | [04:30:05] [main/INFO]: Calling tweak Fugue
    mc-1              | [04:30:05] [main/INFO]: Calling tweak AlfheimPlugin
    mc-1              | [04:30:05] [main/INFO]: Calling tweak Aqua Acrobatics Transformer
    mc-1              | [04:30:05] [main/INFO]: Running in obf, thanks for playing with the mod!
    mc-1              | [04:30:05] [main/INFO]: Calling tweak Forgelin-Continuous
    mc-1              | [04:30:05] [main/INFO]: Calling tweak HCASM
    mc-1              | [04:30:05] [main/INFO]: Calling tweak IvToolkit
    mc-1              | [04:30:05] [main/INFO]: Calling tweak LemonSkinPlugin
    mc-1              | [04:30:05] [main/INFO]: Calling tweak Let Me Despawn
    mc-1              | [04:30:05] [main/INFO]: Found valid Mixin framework! Proceeding to load.
    mc-1              | [04:30:05] [main/INFO]: Calling tweak LoliASM
    mc-1              | [04:30:05] [main/INFO]: Calling tweak ScalarLoadingPlugin
    mc-1              | [04:30:05] [main/INFO]: Calling tweak VintageFix
    mc-1              | WARNING: A terminally deprecated method in sun.misc.Unsafe has been called
    mc-1              | WARNING: sun.misc.Unsafe::arrayBaseOffset has been called by com.esotericsoftware.kryo.unsafe.UnsafeUtil (jar:file:/data/./mods/vintagefix-0.7.1.jar!/com/esotericsoftware/kryo/unsafe/UnsafeUtil.class)
    mc-1              | WARNING: Please consider reporting this to the maintainers of class com.esotericsoftware.kryo.unsafe.UnsafeUtil
    mc-1              | WARNING: sun.misc.Unsafe::arrayBaseOffset will be removed in a future release
    mc-1              | [04:30:05] [main/INFO]: Loading JarDiscovererCache
    mc-1              | [04:30:05] [main/INFO]: Calling tweak WolfArmorCore
    mc-1              | [04:30:05] [main/INFO]: Calling tweak CorePlugin
    mc-1              | [04:30:05] [main/INFO]: Calling tweak XaeroMinimapPlugin
    mc-1              | [04:30:05] [main/INFO]: Calling tweak XaeroWorldMapPlugin
    mc-1              | [04:30:05] [main/INFO]: Calling tweak org.spongepowered.asm.launch.MixinTweaker@236eccd1
    mc-1              | [04:30:05] [main/WARN]: The requested compatibility level JAVA_25 is higher than the level supported by the active subsystem 'LaunchWrapper' which supports JAVA_21. This is not a supported configuration and instability may occur.
    mc-1              | [04:30:05] [main/INFO]: Compatibility level set to JAVA_25
    mc-1              | [04:30:05] [main/INFO]: Calling tweak com.cleanroommc.fugue.common.LateBootstrapTweaker@5974b7e8
    mc-1              | [04:30:05] [main/INFO]: Calling tweak MixinBooter
    

    cc @itzg

  4. jagprog7 commented on Sep 27, 2026

    @jagprog7
    Author

    @KorewaLidesu

    itzg issue, not our.

    possibly true - I have no idea either way. confirmation would be nice

  5. KorewaLidesu commented on Sep 27, 2026

    @KorewaLidesu
    Collaborator
  6. KorewaLidesu commented on Sep 27, 2026

    @KorewaLidesu
    Collaborator

    Okey, I will try take a look over this abit. Sorry for the inconvenient.

  7. self-assigned this
    on Sep 27, 2026
  8. romanfedyniak commented on Sep 27, 2026

    @romanfedyniak
    Contributor

    Cleanroom changed its installer starting with version 0.15.16. I had a similar issue with my own launcher and had to integrate Cleanroom myself. So the issue is on itzg's side - if they don't add support, there's nothing you can do.

  9. itzg commented on Sep 27, 2026

    @itzg

    So the issue is on itzg's side - if they don't add support, there's nothing you can do.

    Correct, I don't yet support it.

    Enhancement request is tracked here itzg/docker-minecraft-server#4282 and I'm looking for community help on this one. I have added support for every major mod loader, so I have run out of mental energy for now to add cleanroom support myself.

  10. KorewaLidesu commented on Sep 27, 2026

    @KorewaLidesu
    Collaborator

    Hi @itzg, can you check PR on mc-image-helper as temporary fix for now?
    Pretty please ✨

  11. KorewaLidesu commented on Sep 28, 2026

    @KorewaLidesu
    Collaborator

    @romanfedyniak can you try again? I pretty sure it will be fail but at least I can to check if there are any other issues.

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