Hi,

Starting a server for a bunch of friends to play on however when i try to join the server it just crashes, looking at the report all the mods are listed as incompatible even though i made sure to only add the version specifc mods.

any and all help is appreciated 

the crash report is as follows:

---- Minecraft Crash Report ----
// Why did you do that?

Time: 2023-04-10 18:25:24
Description: Exception in server tick loop

java.lang.NoSuchFieldError: PACKET_HANDLER
    at net.p3pp3rf1y.sophisticatedbackpacks.common.CommonEventHandler.sendPlayerSettingsToClient(CommonEventHandler.java:131) ~[sophisticatedbackpacks-1.19.2-3.18.40.779.jar%23127!/:1.19.2-3.18.40.779] {re:classloading}
    at net.p3pp3rf1y.sophisticatedbackpacks.common.CommonEventHandler.onPlayerLoggedIn(CommonEventHandler.java:126) ~[sophisticatedbackpacks-1.19.2-3.18.40.779.jar%23127!/:1.19.2-3.18.40.779] {re:classloading}
    at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:260) ~[eventbus-6.0.3.jar%2351!/:?] {}
    at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:252) ~[eventbus-6.0.3.jar%2351!/:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:315) ~[eventbus-6.0.3.jar%2351!/:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:296) ~[eventbus-6.0.3.jar%2351!/:?] {}
    at net.minecraftforge.event.ForgeEventFactory.firePlayerLoggedIn(ForgeEventFactory.java:765) ~[forge-1.19.2-43.2.8-universal.jar%23138!/:?] {re:classloading}
    at net.minecraft.server.players.PlayerList.m_11261_(PlayerList.java:246) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading,xf:fml:xaerominimap:xaero_playerlist_sendworldinfo}
    at net.minecraft.server.network.ServerLoginPacketListenerImpl.m_143699_(ServerLoginPacketListenerImpl.java:156) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.network.ServerLoginPacketListenerImpl.m_10055_(ServerLoginPacketListenerImpl.java:143) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.network.ServerLoginPacketListenerImpl.m_9933_(ServerLoginPacketListenerImpl.java:75) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.network.Connection.m_129483_(Connection.java:248) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading}
    at net.minecraft.server.network.ServerConnectionListener.m_9721_(ServerConnectionListener.java:143) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading}
    at net.minecraft.server.MinecraftServer.m_5703_(MinecraftServer.java:880) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.dedicated.DedicatedServer.m_5703_(DedicatedServer.java:292) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.MinecraftServer.m_5705_(MinecraftServer.java:806) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.MinecraftServer.m_130011_(MinecraftServer.java:654) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading,pl:accesstransformer:B}
    at net.minecraft.server.MinecraftServer.m_206580_(MinecraftServer.java:244) ~[server-1.19.2-20220805.130853-srg.jar%23133!/:?] {re:classloading,pl:accesstransformer:B}
    at java.lang.Thread.run(Thread.java:1623) [?:?] {}

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

-- System Details --
Details:
    Minecraft Version: 1.19.2
    Minecraft Version ID: 1.19.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 20, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode, sharing), Oracle Corporation
    Memory: 1264200880 bytes (1205 MiB) / 2206203904 bytes (2104 MiB) up to 10737418240 bytes (10240 MiB)
    CPUs: 8
    Processor Vendor: GenuineIntel
    Processor Name: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz
    Identifier: Intel64 Family 6 Model 42 Stepping 7
    Microarchitecture: Sandy Bridge (Client)
    Frequency (GHz): 3.39
    Number of physical packages: 1
    Number of physical CPUs: 4
    Number of logical CPUs: 8
    Graphics card #0 name: Intel(R) HD Graphics
    Graphics card #0 vendor: Intel Corporation (0x8086)
    Graphics card #0 VRAM (MB): 2108.00
    Graphics card #0 deviceId: 0x0102
    Graphics card #0 versionInfo: DriverVersion=9.17.10.4459
    Memory slot #0 capacity (MB): 8192.00
    Memory slot #0 clockSpeed (GHz): 1.33
    Memory slot #0 type: DDR3
    Memory slot #1 capacity (MB): 4096.00
    Memory slot #1 clockSpeed (GHz): 1.33
    Memory slot #1 type: DDR3
    Memory slot #2 capacity (MB): 4096.00
    Memory slot #2 clockSpeed (GHz): 1.33
    Memory slot #2 type: DDR3
    Virtual memory max (MB): 18700.55
    Virtual memory used (MB): 4978.18
    Swap memory total (MB): 2432.00
    Swap memory used (MB): 33.17
    JVM Flags: 1 total; -Xmx10G
    Server Running: true
    Player Count: 1 / 20; [ServerPlayer['GasMonkeyZA'/275, l='ServerLevel[world]', x=-81.50, y=74.00, z=227.50]]
    Data Packs: vanilla, mod:forge, mod:immersive_paintings (incompatible), mod:vanillaplustools, mod:sophisticatedbackpacks (incompatible), mod:retraining (incompatible), mod:ironfurnaces (incompatible), mod:mcwfurnitures, mod:jei (incompatible), mod:chat_heads (incompatible), mod:cloth_config (incompatible), mod:voicechat (incompatible), mod:easy_villagers (incompatible), mod:sophisticatedcore (incompatible), mod:modnametooltip (incompatible), mod:shulkerboxtooltip (incompatible), mod:xaerominimap, mod:gravestone (incompatible), mod:mcwlights
    World Generation: Stable
    Is Modded: Definitely; Server brand changed to 'forge'
    Type: Dedicated Server (map_server.txt)
    ModLauncher: 10.0.8+10.0.8+main.0ef7e830
    ModLauncher launch target: forgeserver
    ModLauncher naming: srg
    ModLauncher services: 
        mixin-0.8.5.jar mixin PLUGINSERVICE 
        eventbus-6.0.3.jar eventbus PLUGINSERVICE 
        fmlloader-1.19.2-43.2.8.jar slf4jfixer PLUGINSERVICE 
        fmlloader-1.19.2-43.2.8.jar object_holder_definalize PLUGINSERVICE 
        fmlloader-1.19.2-43.2.8.jar runtime_enum_extender PLUGINSERVICE 
        fmlloader-1.19.2-43.2.8.jar capability_token_subclass PLUGINSERVICE 
        accesstransformers-8.0.4.jar accesstransformer PLUGINSERVICE 
        fmlloader-1.19.2-43.2.8.jar runtimedistcleaner PLUGINSERVICE 
        modlauncher-10.0.8.jar mixin TRANSFORMATIONSERVICE 
        modlauncher-10.0.8.jar fml TRANSFORMATIONSERVICE 
    FML Language Providers: 
        [email protected]
        lowcodefml@null
        javafml@null
    Mod List: 
        server-1.19.2-20220805.130853-srg.jar             |Minecraft                     |minecraft                     |1.19.2              |DONE      |Manifest: NOSIGNATURE
        immersive_paintings-0.6.0+1.19.2-forge.jar        |Immersive Paintings           |immersive_paintings           |0.6.0+1.19.2        |DONE      |Manifest: NOSIGNATURE
        vanillaplustools-1.19-1.1.jar                     |Vanilla+ Tools                |vanillaplustools              |1.19-1.1            |DONE      |Manifest: NOSIGNATURE
        sophisticatedbackpacks-1.19.2-3.18.40.779.jar     |Sophisticated Backpacks       |sophisticatedbackpacks        |1.19.2-3.18.40.779  |DONE      |Manifest: NOSIGNATURE
        Retraining-forge-1.19-1.2.0.jar                   |Retraining                    |retraining                    |1.2.0               |DONE      |Manifest: NOSIGNATURE
        ironfurnaces-1.19.2-3.6.5.jar                     |Iron Furnaces                 |ironfurnaces                  |3.6.5               |DONE      |Manifest: NOSIGNATURE
        mcw-furniture-3.1.0-mc1.19.2forge.jar             |Macaw's Furniture             |mcwfurnitures                 |3.1.0               |DONE      |Manifest: NOSIGNATURE
        jei-1.19.2-forge-11.6.0.1013.jar                  |Just Enough Items             |jei                           |11.6.0.1013         |DONE      |Manifest: NOSIGNATURE
        chat_heads-0.10.8-forge-1.19.2.jar                |Chat Heads                    |chat_heads                    |0.10.8              |DONE      |Manifest: NOSIGNATURE
        cloth-config-8.2.88-forge.jar                     |Cloth Config v8 API           |cloth_config                  |8.2.88              |DONE      |Manifest: NOSIGNATURE
        voicechat-forge-1.19.2-2.4.3.jar                  |Simple Voice Chat             |voicechat                     |1.19.2-2.4.3        |DONE      |Manifest: NOSIGNATURE
        forge-1.19.2-43.2.8-universal.jar                 |Forge                         |forge                         |43.2.8              |DONE      |Manifest: 84:ce:76:e8:45:35:e4:0e:63:86:df:47:59:80:0f:67:6c:c1:5f:6e:5f:4d:b3:54:47:1a:9f:7f:ed:5e:f2:90
        easy_villagers-1.19.2-1.0.0.jar                   |Easy Villagers                |easy_villagers                |1.19.2-1.0.0        |DONE      |Manifest: NOSIGNATURE
        sophisticatedcore-1.19.2-0.5.47.234.jar           |Sophisticated Core            |sophisticatedcore             |1.19.2-0.5.47.234   |DONE      |Manifest: NOSIGNATURE
        modnametooltip-1.19-1.19.0.jar                    |Mod Name Tooltip              |modnametooltip                |1.19.0              |DONE      |Manifest: NOSIGNATURE
        shulkerboxtooltip-forge-3.2.2+1.19.2.jar          |ShulkerBoxTooltip             |shulkerboxtooltip             |3.2.2+1.19.2        |DONE      |Manifest: NOSIGNATURE
        Xaeros_Minimap_23.3.2_Forge_1.19.1.jar            |Xaero's Minimap               |xaerominimap                  |23.3.2              |DONE      |Manifest: NOSIGNATURE
        gravestone-1.19.2-1.0.1.jar                       |Gravestone Mod                |gravestone                    |1.19.2-1.0.1        |DONE      |Manifest: NOSIGNATURE
        mcw-lights-1.0.5-mc1.19.2forge.jar                |Macaw's Lights and Lamps      |mcwlights                     |1.0.5               |DONE      |Manifest: NOSIGNATURE
    Crash Report UUID: 67dd0ce3-b3ec-4fbc-aed9-07e2020c3744
    FML: 43.2
    Forge: net.minecraftforge:43.2.8

Quote

java.lang.NoSuchFieldError: PACKET_HANDLER
    at net.p3pp3rf1y.sophisticatedbackpacks.common.CommonEventHandler.sendPlayerSettingsToClient(CommonEventHandler.java:131) ~[sophisticatedbackpacks-1.19.2-3.18.40.779.jar%23127!/:1.19.2-3.18.40.779] {re:classloading}

Check you have the latest version then contact the mod author.

 

The "incompatible" part is a red-herring.

It just means the mod author hasn't specified the correct version in the metadata for their datapack, usually because they haven't updated the value since they first created their mod for a previous version of minecraft.

Unless they are actually using bleeding edge datapack features this is unlikely to be a problem.