Failed to install Fabric launcher for update to 26.2

[Khadath]

Hi,
I wanted to update my server to version 26.2 (previously 1.21.11). After modifying the stack values ​​and restarting the server for the update, I encountered this error:
[ERROR] Failed to install Fabric launcher given 26.2, 1.1.1, 0.19.3

Did you manage to switch to version 26.2 with Fabric? Has anyone else encountered the same problem?

[Khadath]

It spends a long time on the resolving stage. Here is the full log:

[init] Running as uid=1000 gid=1000 with /data as 'drwxrwxrwx 14 1000 100 4096 Jun 3 19:50 /data'
[init] Image info: buildtime=2026-06-26T15:19:04.651Z,version=java25,revision=f1dd0f3d718430b202018d3d5d883bc33bc7b21a
[init] Resolving type given FABRIC
[mc-image-helper] 21:40:56.705 ERROR : 'install-fabric-loader' command failed. Version is 1.61.1
reactor.core.Exceptions$RetryExhaustedException: Retries exhausted: 10/10
at reactor.core.Exceptions.retryExhausted(Exceptions.java:308)
Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException:
Error has been observed at the following site(s):
*__checkpoint ⇢ downloadLauncher
*__checkpoint ⇢ downloadResolvedLauncher
Original Stack Trace:
at reactor.core.Exceptions.retryExhausted(Exceptions.java:308)
at reactor.util.retry.RetryBackoffSpec.lambda$static$0(RetryBackoffSpec.java:67)
at reactor.util.retry.RetryBackoffSpec.lambda$generateCompanion$1(RetryBackoffSpec.java:607)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:182)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:109)
at reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:480)
at reactor.core.publisher.SinkManyEmitterProcessor.tryEmitNext(SinkManyEmitterProcessor.java:278)
at reactor.core.publisher.SinkManySerialized.tryEmitNext(SinkManySerialized.java:100)
at reactor.core.publisher.InternalManySink.emitNext(InternalManySink.java:27)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:195)
at reactor.core.publisher.MonoSubscribeOn$SubscribeOnSubscriber.onError(MonoSubscribeOn.java:153)
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onError(MonoFlatMap.java:180)
at reactor.core.publisher.SerializedSubscriber.onError(SerializedSubscriber.java:125)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.whenError(FluxRetryWhen.java:230)
at reactor.core.publisher.FluxRetryWhen$RetryWhenOtherSubscriber.onError(FluxRetryWhen.java:282)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onError(FluxContextWrite.java:123)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.maybeOnError(FluxConcatMapNoPrefetch.java:326)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:211)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:109)
at reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:480)
at reactor.core.publisher.SinkManyEmitterProcessor$EmitterInner.drainParent(SinkManyEmitterProcessor.java:624)
at reactor.core.publisher.FluxPublish$PubSubInner.request(FluxPublish.java:879)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:138)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:336)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:138)
at reactor.core.publisher.Operators$DeferredSubscription.request(Operators.java:1740)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:197)
at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:206)
at reactor.netty.http.client.HttpClientConnect$MonoHttpConnect$ClientTransportSubscriber.onError(HttpClientConnect.java:336)
at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:206)
at reactor.netty.resources.DefaultPooledConnectionProvider$DisposableAcquire.onError(DefaultPooledConnectionProvider.java:182)
at reactor.netty.internal.shaded.reactor.pool.AbstractPool$Borrower.fail(AbstractPool.java:504)
at reactor.netty.internal.shaded.reactor.pool.SimpleDequePool.lambda$drainLoop$9(SimpleDequePool.java:444)
at reactor.core.publisher.FluxDoOnEach$DoOnEachSubscriber.onError(FluxDoOnEach.java:186)
at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:206)
at reactor.netty.resources.DefaultPooledConnectionProvider$PooledConnectionAllocator$PooledConnectionInitializer.onError(DefaultPooledConnectionProvider.java:610)
at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondError(MonoFlatMap.java:241)
at reactor.core.publisher.MonoFlatMap$FlatMapInner.onError(MonoFlatMap.java:316)
at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:107)
at reactor.core.publisher.SerializedSubscriber.onError(SerializedSubscriber.java:125)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.whenError(FluxRetryWhen.java:230)
at reactor.core.publisher.FluxRetryWhen$RetryWhenOtherSubscriber.onError(FluxRetryWhen.java:282)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onError(FluxContextWrite.java:123)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.maybeOnError(FluxConcatMapNoPrefetch.java:326)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:211)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:109)
at reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:480)
at reactor.core.publisher.SinkManyEmitterProcessor$EmitterInner.drainParent(SinkManyEmitterProcessor.java:624)
at reactor.core.publisher.FluxPublish$PubSubInner.request(FluxPublish.java:879)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:138)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:336)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:138)
at reactor.core.publisher.Operators$DeferredSubscription.request(Operators.java:1740)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:197)
at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondError(MonoFlatMap.java:241)
at reactor.core.publisher.MonoFlatMap$FlatMapInner.onError(MonoFlatMap.java:316)
at reactor.netty.transport.TransportConnector$MonoChannelPromise.tryFailure(TransportConnector.java:604)
at reactor.netty.transport.TransportConnector$MonoChannelPromise.setFailure(TransportConnector.java:550)
at reactor.netty.transport.TransportConnector.lambda$null$7(TransportConnector.java:263)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:604)
at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:597)
at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:573)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:506)
at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:650)
at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:643)
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:132)
at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe$1.run(AbstractEpollChannel.java:670)
at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98)
at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:160)
at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535)
at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Unknown Source)
Suppressed: java.lang.Exception: #block terminated with an error
at reactor.core.publisher.BlockingSingleSubscriber.blockingGet(BlockingSingleSubscriber.java:104)
at reactor.core.publisher.Mono.block(Mono.java:1773)
at me.itzg.helpers.fabric.FabricLauncherInstaller.installUsingVersions(FabricLauncherInstaller.java:80)
at me.itzg.helpers.fabric.InstallFabricLoaderCommand.call(InstallFabricLoaderCommand.java:116)
at me.itzg.helpers.fabric.InstallFabricLoaderCommand.call(InstallFabricLoaderCommand.java:18)
at picocli.CommandLine.executeUserObject(CommandLine.java:2031)
at picocli.CommandLine.access$1500(CommandLine.java:148)
at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2469)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2461)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2423)
at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
at picocli.CommandLine$RunLast.execute(CommandLine.java:2425)
at picocli.CommandLine.execute(CommandLine.java:2174)
at me.itzg.helpers.McImageHelper.main(McImageHelper.java:182)
Caused by: io.netty.channel.ConnectTimeoutException: connection timed out after 30000 ms: meta.fabricmc.net/172.67.151.177:443
at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe$1.run(AbstractEpollChannel.java:669)
Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException:
Error has been observed at the following site(s):
*__checkpoint ⇢ Fetch HEAD of requested file
Original Stack Trace:
at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe$1.run(AbstractEpollChannel.java:669)
at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98)
at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:160)
at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535)
at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Unknown Source)
[init] [ERROR] Failed to installFabric launcher given 26.2, 1.1.1, 0.19.3

[itzg]

It's taking a while and then failing because there's a connectivity issue somewhere between your system and Fabric's

ConnectTimeoutException: connection timed out after 30000 ms: meta.fabricmc.net/172.67.151.177:443

Are you running on an IPv6-only network?

I'm also not sure where this input came from

26.2, 1.1.1, 0.19.3

I can't help with networking issues, but can you provide your compose file or similar to help with the unusual version input?

[itzg]

Thanks. I guess my logging message there isn't descriptive enough for me.

Sorry, I can help any further since you have a network issue you need to investigate on your system.

[Khadath]

:'(

[Khadath]

My settings haven't changed, and it was working fine before. I hadn't started the server for several weeks, but it was working.

[itzg]

My settings haven't changed, and it was working fine before. I hadn't started the server for several weeks, but it was working.

The image hasn't changed significantly in the past few weeks. This starts up fine for me:

services:
  mc:
    image: itzg/minecraft-server
    pull_policy: "always"
    environment:
      EULA: "TRUE"
      TYPE: "FABRIC"
      VERSION: "26.2"
      FABRIC_LAUNCHER_VERSION: "1.1.1"
      FABRIC_LOADER_VERSION: "0.19.3"
      DEBUG: true

with the debug logs through fabric download and install

++ mc-image-helper java-release
+ ((  25 >= 17  ))
+ MC_IMAGE_HELPER_OPTS+=' --enable-native-access=ALL-UNNAMED'
+ export MC_IMAGE_HELPER_OPTS
+ export HOME=/data
+ HOME=/data
++ id -u
++ id -g
++ ls -lnd /data
+ log 'Running as uid=1000 gid=1000 with /data as '\''drwxr-x--- 9 1000 1000 4096 Jun 29 20:58 /data'\'''
+ local oldState
++ shopt -po xtrace
+ oldState='set -o xtrace'
+ shopt -u -o xtrace
[init] 2026-06-29 20:59:26+00:00 Running as uid=1000 gid=1000 with /data as 'drwxr-x--- 9 1000 1000 4096 Jun 29 20:58 /data'
++ paste -d, -s /etc/image.properties
+ log 'Image info: buildtime=2026-06-26T15:19:04.651Z,version=java25,revision=f1dd0f3d718430b202018d3d5d883bc33bc7b21a'
+ local oldState
++ shopt -po xtrace
+ oldState='set -o xtrace'
+ shopt -u -o xtrace
[init] 2026-06-29 20:59:26+00:00 Image info: buildtime=2026-06-26T15:19:04.651Z,version=java25,revision=f1dd0f3d718430b202018d3d5d883bc33bc7b21a
+ '[' '!' -e /data/eula.txt ']'
+ isTrue false
+ case "${1,,}" in
+ return 1
+ isTrue true
+ case "${1,,}" in
+ return 0
+ set +x
+ isTrue false
+ case "${1,,}" in
+ return 1
+ proxyArgs=()
+ [[ -n '' ]]
+ proxyArgs=()
+ addToProxyArgs http.proxyHost ''
+ [[ -n '' ]]
+ addToProxyArgs http.proxyPort ''
+ [[ -n '' ]]
+ addToProxyArgs http.nonProxyHosts ''
+ [[ -n '' ]]
+ LOCAL_IFS=$'\n\t'
+ IFS=' '
+ MC_IMAGE_HELPER_OPTS+=' '
+ IFS=$'\n\t'
+ export MC_IMAGE_HELPER_OPTS
+ fixJavaPath
+ which java
+ cd /data
+ isTrue false
+ case "${1,,}" in
+ return 1
+ [[ -n '' ]]
+ [[ -n '' ]]
+ export DECLARED_TYPE=FABRIC
+ DECLARED_TYPE=FABRIC
+ export DECLARED_VERSION=26.2
+ DECLARED_VERSION=26.2
+ isTrue ''
+ case "${1,,}" in
+ return 1
+ isTrue false
+ case "${1,,}" in
+ return 1
+ isTrue false
+ case "${1,,}" in
+ return 1
+ [[ -n '' ]]
+ [[ -n '' ]]
+ [[ -n '' ]]
+ [[ -n '' ]]
+ [[ -n '' ]]
+ : ''
+ [[ -n '' ]]
+ case "${TYPE^^}" in
+ [[ -n '' ]]
+ log 'Resolving type given FABRIC'
+ local oldState
++ shopt -po xtrace
+ oldState='set -o xtrace'
+ shopt -u -o xtrace
[init] 2026-06-29 20:59:26+00:00 Resolving type given FABRIC
+ case "${TYPE^^}" in
++ dirname /image/scripts/start-configuration
+ exec /image/scripts/start-deployFabric
+ commonArgs=(--results-file="${resultsFile}")
+ isTrue false
+ case "${1,,}" in
+ return 1
+ [[ -n '' ]]
+ [[ -n '' ]]
+ mc-image-helper install-fabric-loader --results-file=/data/.install-fabric.env --minecraft-version=26.2 --installer-version=1.1.1 --loader-version=0.19.3
[mc-image-helper] 20:59:26.999 DEBUG : Using HTTP/1.1
[mc-image-helper] 20:59:27.158 DEBUG : Resolved minecraft version 26.2 from 26.2
[mc-image-helper] 20:59:27.160 DEBUG : Resolved loader version 0.19.3 from 0.19.3
[mc-image-helper] 20:59:27.161 DEBUG : Resolved installer version 1.1.1 from 1.1.1
[mc-image-helper] 20:59:27.217 DEBUG : Writing SERVER="./fabric-server-mc.26.2-loader.0.19.3-launcher.1.1.1.jar" to results file
[mc-image-helper] 20:59:27.217 DEBUG : Writing FAMILY="FABRIC" to results file
[mc-image-helper] 20:59:27.217 DEBUG : Writing TYPE="FABRIC" to results file
[mc-image-helper] 20:59:27.218 DEBUG : Writing VERSION="26.2" to results file
[mc-image-helper] 20:59:27.218 INFO  : Fabric launcher for minecraft 26.2 loader 0.19.3 is already available
+ applyResultsFile /data/.install-fabric.env
+ set -a
+ source /data/.install-fabric.env
++ SERVER=./fabric-server-mc.26.2-loader.0.19.3-launcher.1.1.1.jar
++ FAMILY=FABRIC
++ TYPE=FABRIC
++ VERSION=26.2
+ set +a
+ export FAMILY=FABRIC
+ FAMILY=FABRIC
++ dirname /image/scripts/start-deployFabric
+ exec /image/scripts/start-setupWorld

[Khadath]

After getting stuck on these steps for a while:

• mc-image-helper install-fabric-loader --results-file=/data/.install-fabric.env --minecraft-version=26.2 --installer-version=1.1.1 --loader-version=0.19.3
  [mc-image-helper] 22:15:13.680 DEBUG : Using HTTP/1.1
  [mc-image-helper] 22:15:13.966 DEBUG : Resolved minecraft version 26.2 from 26.2
  [mc-image-helper] 22:15:13.968 DEBUG : Resolved loader version 0.19.3 from 0.19.3
  [mc-image-helper] 22:15:13.981 DEBUG : Resolved installer version 1.1.1 from 1.1.1

He does end up making mistakes though:

[mc-image-helper] 22:33:33.586 ERROR : 'install-fabric-loader' command failed. Version is 1.61.1
reactor.core.Exceptions$RetryExhaustedException: Retries exhausted: 10/10
at reactor.core.Exceptions.retryExhausted(Exceptions.java:308)
Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException:
Error has been observed at the following site(s):
*__checkpoint ⇢ downloadLauncher
*__checkpoint ⇢ downloadResolvedLauncher
Original Stack Trace:
at reactor.core.Exceptions.retryExhausted(Exceptions.java:308)
at reactor.util.retry.RetryBackoffSpec.lambda$static$0(RetryBackoffSpec.java:67)
at reactor.util.retry.RetryBackoffSpec.lambda$generateCompanion$1(RetryBackoffSpec.java:607)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:182)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:109)
at reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:480)
at reactor.core.publisher.SinkManyEmitterProcessor.tryEmitNext(SinkManyEmitterProcessor.java:278)
at reactor.core.publisher.SinkManySerialized.tryEmitNext(SinkManySerialized.java:100)
at reactor.core.publisher.InternalManySink.emitNext(InternalManySink.java:27)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:195)
at reactor.core.publisher.MonoSubscribeOn$SubscribeOnSubscriber.onError(MonoSubscribeOn.java:153)
at reactor.core.publisher.MonoFlatMap$FlatMapMain.onError(MonoFlatMap.java:180)
at reactor.core.publisher.SerializedSubscriber.onError(SerializedSubscriber.java:125)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.whenError(FluxRetryWhen.java:230)
at reactor.core.publisher.FluxRetryWhen$RetryWhenOtherSubscriber.onError(FluxRetryWhen.java:282)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onError(FluxContextWrite.java:123)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.maybeOnError(FluxConcatMapNoPrefetch.java:326)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:211)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:109)
at reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:480)
at reactor.core.publisher.SinkManyEmitterProcessor$EmitterInner.drainParent(SinkManyEmitterProcessor.java:624)
at reactor.core.publisher.FluxPublish$PubSubInner.request(FluxPublish.java:879)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:138)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:336)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:138)
at reactor.core.publisher.Operators$DeferredSubscription.request(Operators.java:1740)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:197)
at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:206)
at reactor.netty.http.client.HttpClientConnect$MonoHttpConnect$ClientTransportSubscriber.onError(HttpClientConnect.java:336)
at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:206)
at reactor.netty.resources.DefaultPooledConnectionProvider$DisposableAcquire.onError(DefaultPooledConnectionProvider.java:182)
at reactor.netty.internal.shaded.reactor.pool.AbstractPool$Borrower.fail(AbstractPool.java:504)
at reactor.netty.internal.shaded.reactor.pool.SimpleDequePool.lambda$drainLoop$9(SimpleDequePool.java:444)
at reactor.core.publisher.FluxDoOnEach$DoOnEachSubscriber.onError(FluxDoOnEach.java:186)
at reactor.core.publisher.MonoCreate$DefaultMonoSink.error(MonoCreate.java:206)
at reactor.netty.resources.DefaultPooledConnectionProvider$PooledConnectionAllocator$PooledConnectionInitializer.onError(DefaultPooledConnectionProvider.java:610)
at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondError(MonoFlatMap.java:241)
at reactor.core.publisher.MonoFlatMap$FlatMapInner.onError(MonoFlatMap.java:316)
at reactor.core.publisher.FluxOnErrorResume$ResumeSubscriber.onError(FluxOnErrorResume.java:107)
at reactor.core.publisher.SerializedSubscriber.onError(SerializedSubscriber.java:125)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.whenError(FluxRetryWhen.java:230)
at reactor.core.publisher.FluxRetryWhen$RetryWhenOtherSubscriber.onError(FluxRetryWhen.java:282)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onError(FluxContextWrite.java:123)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.maybeOnError(FluxConcatMapNoPrefetch.java:326)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.onNext(FluxConcatMapNoPrefetch.java:211)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.onNext(FluxContextWrite.java:109)
at reactor.core.publisher.SinkManyEmitterProcessor.drain(SinkManyEmitterProcessor.java:480)
at reactor.core.publisher.SinkManyEmitterProcessor$EmitterInner.drainParent(SinkManyEmitterProcessor.java:624)
at reactor.core.publisher.FluxPublish$PubSubInner.request(FluxPublish.java:879)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:138)
at reactor.core.publisher.FluxConcatMapNoPrefetch$FluxConcatMapNoPrefetchSubscriber.request(FluxConcatMapNoPrefetch.java:336)
at reactor.core.publisher.FluxContextWrite$ContextWriteSubscriber.request(FluxContextWrite.java:138)
at reactor.core.publisher.Operators$DeferredSubscription.request(Operators.java:1740)
at reactor.core.publisher.FluxRetryWhen$RetryWhenMainSubscriber.onError(FluxRetryWhen.java:197)
at reactor.core.publisher.MonoFlatMap$FlatMapMain.secondError(MonoFlatMap.java:241)
at reactor.core.publisher.MonoFlatMap$FlatMapInner.onError(MonoFlatMap.java:316)
at reactor.netty.transport.TransportConnector$MonoChannelPromise.tryFailure(TransportConnector.java:604)
at reactor.netty.transport.TransportConnector$MonoChannelPromise.setFailure(TransportConnector.java:550)
at reactor.netty.transport.TransportConnector.lambda$null$7(TransportConnector.java:263)
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:604)
at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:597)
at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:573)
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:506)
at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:650)
at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:643)
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:132)
at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe$1.run(AbstractEpollChannel.java:670)
at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98)
at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:160)
at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535)
at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Unknown Source)
Suppressed: java.lang.Exception: #block terminated with an error
at reactor.core.publisher.BlockingSingleSubscriber.blockingGet(BlockingSingleSubscriber.java:104)
at reactor.core.publisher.Mono.block(Mono.java:1773)
at me.itzg.helpers.fabric.FabricLauncherInstaller.installUsingVersions(FabricLauncherInstaller.java:80)
at me.itzg.helpers.fabric.InstallFabricLoaderCommand.call(InstallFabricLoaderCommand.java:116)
at me.itzg.helpers.fabric.InstallFabricLoaderCommand.call(InstallFabricLoaderCommand.java:18)
at picocli.CommandLine.executeUserObject(CommandLine.java:2031)
at picocli.CommandLine.access$1500(CommandLine.java:148)
at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2469)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2461)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2423)
at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
at picocli.CommandLine$RunLast.execute(CommandLine.java:2425)
at picocli.CommandLine.execute(CommandLine.java:2174)
at me.itzg.helpers.McImageHelper.main(McImageHelper.java:182)
Caused by: io.netty.channel.ConnectTimeoutException: connection timed out after 30000 ms: meta.fabricmc.net/104.21.33.240:443
at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe$1.run(AbstractEpollChannel.java:669)
Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException:
Error has been observed at the following site(s):
*__checkpoint ⇢ Fetch HEAD of requested file
Original Stack Trace:
at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe$1.run(AbstractEpollChannel.java:669)
at io.netty.util.concurrent.PromiseTask.runTask(PromiseTask.java:98)
at io.netty.util.concurrent.ScheduledFutureTask.run(ScheduledFutureTask.java:160)
at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535)
at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1195)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Unknown Source)

• logError 'Failed to installFabric launcher given 26.2, 1.1.1, 0.19.3'
• isDebugging
• isTrue true
• case "${1,,}" in
• return 0
• set +x
  [init] 2026-06-30 22:33:33+02:00 [ERROR] Failed to installFabric launcher given 26.2, 1.1.1, 0.19.3
• exit 1

[Khadath]

I reverted to the previous configuration, the server starts but there is this error:
[Yggdrasil Key Fetcher/ERROR]: Failed to request yggdrasil public key

I know what it means but I don't understand how to solve it, whereas before I had no problems until I started the server after several weeks of inactivity.