Velocity server connection Probleme?

Guten Tag,

ich habe das problem das ich nicht auf meinem citybuild server joinen kann von der lobby aus obwohl in der velocity.toml, server.propeties und paper-global alles richtig ist was ChatGPT zu mir meinte. Hier ist der FehlerCode:
[20:21:02 ERROR]: [connected player] GhostAdminCLM (/92.72.38.242:17782): unable to connect to server citybuild

java.lang.IllegalStateException: Backend server is online-mode!

at com.velocitypowered.proxy.connection.backend.LoginSessionHandler.handle(LoginSessionHandler.java:79) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at com.velocitypowered.proxy.protocol.packet.EncryptionRequestPacket.handle(EncryptionRequestPacket.java:94) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at com.velocitypowered.proxy.connection.MinecraftConnection.channelRead(MinecraftConnection.java:155) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:359) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at com.velocitypowered.proxy.protocol.netty.AutoReadHolderHandler.channelRead(AutoReadHolderHandler.java:57) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.tryDecode(MinecraftDecoder.java:91) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.channelRead(MinecraftDecoder.java:60) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:359) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:293) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:359) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1429) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:918) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:793) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.handle(AbstractEpollChannel.java:479) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.epoll.EpollIoHandler$DefaultEpollIoRegistration.handle(EpollIoHandler.java:307) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.epoll.EpollIoHandler.processReady(EpollIoHandler.java:489) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.epoll.EpollIoHandler.run(EpollIoHandler.java:444) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.SingleThreadIoEventLoop.runIo(SingleThreadIoEventLoop.java:204) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:175) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1073) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[velocity.jar:3.4.0-SNAPSHOT (git-81deb1ff-b521)]

at java.base/java.lang.Thread.run(Thread.java:1583) [?:?]

1 Antwort

Floinki

Von gutefrage auf Grund seines Wissens auf einem Fachgebiet ausgezeichneter Nutzer

Minecraft Server, Minecraft Java Edition

14.07.2025, 08:00

Wie ganz oben im Fehler in der ersten Zeile steht, geht das nicht, da auf dem Server hinter dem Proxy (dort wo man drauf joint) die option in der server.properties online-mode auf true ist, obwohl es auf false sein muss

Woher ich das weiß:eigene Erfahrung – Spiele seit der 1.7

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---------------------------------------------------------------------------------------

-- Head --

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.
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	at java.lang.Thread.run(Unknown Source) [?:1.8.0_333]
[20:03:04] [Server thread/ERROR]: This crash report has been saved to: C:\Users\Lenni\OneDrive\Desktop\Localhost Server\.\crash-reports\crash-2022-06-16_20.03.04-server.txt
[20:03:04] [Server thread/INFO]: Stopping server
[20:03:04] [Server thread/INFO]: Saving worlds
[20:03:04] [Server thread/ERROR]: Exception stopping the server
java.lang.NullPointerException: null
	at net.minecraft.server.MinecraftServer.a(SourceFile:574) ~[server%20(3).jar:?]
	at net.minecraft.server.MinecraftServer.s(SourceFile:601) ~[server%20(3).jar:?]
	at yd.s(SourceFile:556) ~[server%20(3).jar:?]
	at net.minecraft.server.MinecraftServer.v(SourceFile:709) ~[server%20(3).jar:?]
	at net.minecraft.server.MinecraftServer.a(SourceFile:256) ~[server%20(3).jar:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_333]

Kennt jemand dazu eine Lösung?

...zum Beitrag

Wie fixe ich diesen Error?

Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.SecurityException: Invalid signature file digest for Manifest main attributes
        at sun.security.util.SignatureFileVerifier.processImpl(SignatureFileVerifier.java:330)
        at sun.security.util.SignatureFileVerifier.process(SignatureFileVerifier.java:263)
        at java.util.jar.JarVerifier.processEntry(JarVerifier.java:318)
        at java.util.jar.JarVerifier.update(JarVerifier.java:230)
        at java.util.jar.JarFile.initializeVerifier(JarFile.java:383)
        at java.util.jar.JarFile.ensureInitialization(JarFile.java:612)
        at java.util.jar.JavaUtilJarAccessImpl.ensureInitialization(JavaUtilJarAccessImpl.java:69)
        at sun.misc.URLClassPath$JarLoader$2.getManifest(URLClassPath.java:991)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:451)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:495)

Ich habe einen DiscordBot in der JDA programmiert (maven) aber ich kann die
jar datei nicht ausführen weiß jemand wieso?

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Wieso funktioniert mein Minecraft gar nicht mehr mit Worldedit (1 Mods)?

[13:46:56] [Client thread/INFO]:Starts to replace vanilla recipe ingredients with ore ingredients.

[13:46:56] [Client thread/INFO]:Invalid recipe found with multiple oredict ingredients in the same ingredient...

[13:46:56] [Client thread/INFO]:Replaced 1227 ore ingredients

[13:46:57] [Client thread/INFO]:Searching C:\Users\Julia\curseforge\minecraft\Instances\Minecraft Projekt\mods for mods

[13:46:57] [Client thread/INFO]:Forge Mod Loader has identified 4 mods to load

[13:46:58] [Client thread/INFO]:Attempting connection with missing mods [minecraft, mcp, FML, forge] at CLIENT

[13:46:58] [Client thread/INFO]:Attempting connection with missing mods [minecraft, mcp, FML, forge] at SERVER

[13:46:58] [Client thread/INFO]:Reloading ResourceManager: Default, FMLFileResourcePack:Forge Mod Loader, FMLFileResourcePack:Minecraft Forge

[13:46:58] [Client thread/INFO]:Processing ObjectHolder annotations

[13:46:58] [Client thread/INFO]:Found 1168 ObjectHolder annotations

[13:46:58] [Client thread/INFO]:Identifying ItemStackHolder annotations

[13:46:58] [Client thread/INFO]:Found 0 ItemStackHolder annotations

[13:46:58] [Client thread/INFO]:Configured a dormant chunk cache size of 0

[13:46:58] [Forge Version Check/INFO]:[forge] Starting version check at http://files.minecraftforge.net/maven/net/minecraftforge/forge/promotions_slim.json

[13:46:58] [Client thread/INFO]:Applying holder lookups

[13:46:58] [Client thread/INFO]:Holder lookups applied

[13:46:58] [Client thread/INFO]:Applying holder lookups

[13:46:58] [Client thread/INFO]:Holder lookups applied

[13:46:58] [Client thread/INFO]:Applying holder lookups

[13:46:58] [Client thread/INFO]:Holder lookups applied

[13:46:58] [Client thread/INFO]:Applying holder lookups

[13:46:58] [Client thread/INFO]:Holder lookups applied

[13:46:58] [Client thread/INFO]:Injecting itemstacks

[13:46:58] [Client thread/INFO]:Itemstack injection complete

[13:46:58] [Thread-3/INFO]:Using sync timing. 200 frames of Display.update took 109675600 nanos

[13:46:59] [Sound Library Loader/INFO]:Starting up SoundSystem...

[13:46:59] [Thread-5/INFO]:Initializing LWJGL OpenAL

[13:46:59] [Thread-5/INFO]:(The LWJGL binding of OpenAL. For more information, see http://www.lwjgl.org)

[13:46:59] [Thread-5/INFO]:OpenAL initialized.

[13:46:59] [Forge Version Check/INFO]:[forge] Found status: UP_TO_DATE Target: null

[13:46:59] [Sound Library Loader/INFO]:Sound engine started

[13:47:01] [Client thread/INFO]:Max texture size: 16384

[13:47:03] [Client thread/INFO]:Created: 512x512 textures-atlas

[13:47:04] [Client thread/INFO]:Applying holder lookups

[13:47:04] [Client thread/INFO]:Holder lookups applied

[13:47:04] [Client thread/INFO]:Injecting itemstacks

[13:47:04] [Client thread/INFO]:Itemstack injection complete

[13:47:04] [Client thread/INFO]:Forge Mod Loader has successfully loaded 4 mods

[13:47:04] [Client thread/WARN]:Skipping bad option: lastServer:

[13:47:04] [Client thread/INFO]:Narrator library for x64 successfully loaded

[13:47:20] [Client thread/INFO]:Stopping!

[13:47:20] [Client thread/INFO]:SoundSystem shutting down...

[13:47:20] [Client thread/WARN]:Author: Paul Lamb, www.paulscode.com

...zum Beitrag

Minecraft Server geht nicht?

Hallo.

Ich habe gestern auf meinem V Server Multicraft installiert, und jetzt wollte ich einen Server installieren. Es kam dann aber nur diese Fehlermeldung:

03.01 10:52:26[Multicraft] Received start command
03.01 10:52:26[Multicraft] Loading server properties
03.01 10:52:26[Multicraft] Starting server!
03.01 10:52:26[Multicraft] Loaded config for "Default Minecraft Server"
03.01 10:52:26[Server]INFO Exception in thread "main" java.lang.UnsupportedClassVersionError: net/minecraftforge/fml/relauncher/ServerLaunchWrapper : Unsupported major.minor version 52.0
03.01 10:52:26[Server]INFO at java.lang.ClassLoader.defineClass1(Native Method)
03.01 10:52:26[Server]INFO at java.lang.ClassLoader.defineClass(ClassLoader.java:808)
03.01 10:52:26[Server]INFO at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
03.01 10:52:26[Server]INFO at java.net.URLClassLoader.defineClass(URLClassLoader.java:443)
03.01 10:52:26[Server]INFO at java.net.URLClassLoader.access$100(URLClassLoader.java:65)
03.01 10:52:26[Server]INFO at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
03.01 10:52:26[Server]INFO at java.net.URLClassLoader$1.run(URLClassLoader.java:349)
03.01 10:52:26[Server]INFO at java.security.AccessController.doPrivileged(Native Method)
03.01 10:52:26[Server]INFO at java.net.URLClassLoader.findClass(URLClassLoader.java:348)
03.01 10:52:26[Server]INFO at java.lang.ClassLoader.loadClass(ClassLoader.java:430)
03.01 10:52:26[Server]INFO at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:326)
03.01 10:52:26[Server]INFO at java.lang.ClassLoader.loadClass(ClassLoader.java:363)
03.01 10:52:26[Server]INFO at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
03.01 10:52:26[Multicraft] Server shut down (starting)
03.01 10:52:26[Multicraft] Restarting crashed server in 5 seconds
03.01 10:52:26[Multicraft] Stopping server!
03.01 10:52:28[Multicraft] Looks like a crash, check the server console. Return value: 1
03.01 10:52:28[Multicraft] Server stopped

Was muss ich machen dass ich den Server starten kann? Ich möchte Forge 1.12.2 drauf installieren.

...zum Beitrag

Warum kommen die Fehlermeldungen?

Ich habe einen Minecraft Server, vor kurzen öffentlich gemacht und deswegen die Firewall auf dem Server sehr viel blockierend konfiguriert, vermutlich zu viel.

Also; Wenn ich meinen Minecraft Server starte kommt diese Fehlermeldung in der Konsole (verwalte ihn mit pufferpanel):

[11:40:29 ERROR]: Failed to request yggdrasil public key com.mojang.authlib.exceptions.MinecraftClientException: Failed to read from https://api.minecraftservices.com/publickeys due to api.minecraftservices.com at com.mojang.authlib.minecraft.client.MinecraftClient.readInputStream(MinecraftClient.java:108) ~[authlib-6.0.54.jar:?] at com.mojang.authlib.minecraft.client.MinecraftClient.get(MinecraftClient.java:57) ~[authlib-6.0.54.jar:?] at com.mojang.authlib.yggdrasil.YggdrasilServicesKeyInfo.fetch(YggdrasilServicesKeyInfo.java:114) ~[authlib-6.0.54.jar:?] at com.mojang.authlib.yggdrasil.YggdrasilServicesKeyInfo$1.run(YggdrasilServicesKeyInfo.java:89) ~[authlib-6.0.54.jar:?] at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[?:?] at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[?:?] at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) ~[?:?] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?] at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?] Caused by: java.net.UnknownHostException: api.minecraftservices.com at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:567) ~[?:?] at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327) ~[?:?] at java.base/java.net.Socket.connect(Socket.java:751) ~[?:?] at java.base/sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:304) ~[?:?] at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:178) ~[?:?] at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:531) ~[?:?] at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:636) ~[?:?] at java.base/sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264) ~[?:?] at java.base/sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:377) ~[?:?] at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:193) ~[?:?] at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1282) ~[?:?] at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1123) ~[?:?] at java.base/sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:179) ~[?:?] at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1675) ~[?:?] at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1599) ~[?:?] at java.base/java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:531) ~[?:?] at java.base/sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:307) ~[?:?] at com.mojang.authlib.minecraft.client.MinecraftClient.readInputStream(MinecraftClient.java:84) ~[authlib-6.0.54.jar:?] ... 9 more

Das gleiche gilt auch wenn ich etwas versuche herunter zu laden oder ganz simple: sudo apt get update ausführe -> ebenfalls ein Error.

Ich vermute es liegt an der Firewall, denn da habe ich nur einen port für ssh, 8080 für das pufferpanel und 25565 für den Minecraft Server geöffnet (alle tcp)also müsste ich jetzt:

sudo ufw allow out on eth0 to any port 80,443 proto tcp

machen also port 80 für HTTP und 443 für HTTPS oder liege ich da falsch? und wenn ich diese öffne dann sollte mein problem doch behoben sein oder?

Falls jemand sonst noch Verbesserungs Tipps bezüglich der Sicherheit hat, wäre ich auch sehr dankbar ebenfalls um ein Feedback ob das Sicherheitstechnisch schon in Ordnung ist so.

Testweise könnte ich doch auch die Firewall kurz deaktivieren und den Minecraft Server dann starten oder etwas herunterladen und wenn es funktioniert liegt das Problem an der Firewall.
Falls der oben genannte Befehl nicht die Lösung ist was wäre dann die Lösung?
LG
Xevex

...zum Beitrag

Warum hat mein Minecraft Server immer Out of Memory?

Also ich habe ein Debian Server und darauf läuft ein Minecraft Server! Dieser stürzt immer ab! Was soll ich tun? Und der Crash Report: http://pastebin.com/eDFycvyp ServerLog: [10:57:54] [Server thread/ERROR]: Encountered an unexpected exception java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) ~[?:1.8.0_91] at java.lang.Thread.start(Thread.java:714) ~[?:1.8.0_91] at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:950) ~[?:1.8.0_91] at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1368) ~[?:1.8.0_91] at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:364) ~[spigot-1.8.8-R0.1-SNAPSHOT-latest.jar:git-Spigot-db6d$ at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:723) ~[spigot-1.8.8-R0.1-SNAPSHOT-latest.jar:git-Spigot-db6de12-18fbb24] at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) ~[spigot-1.8.8-R0.1-SNAPSHOT-latest.jar:git-Spigot-db6de12-18fbb24] at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) ~[spigot-1.8.8-R0.1-SNAPSHOT-latest.jar:git-Spigot-db6de12-18fbb24] at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot-1.8.8-R0.1-SNAPSHOT-latest.jar:git-Spigot-db6de12-18fbb24] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91] [10:57:54] [Server thread/ERROR]: This crash report has been saved to: /home/Server1/./crash-reports/crash-2016-06-20_10.57.54-server.txt

BITTE HILFE!

...zum Beitrag

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