Solved Magic World Crash java.lang.NoClassDefFoundError

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Sn0bb

New Member
Jul 29, 2019
22
0
0
I updated to the beta release v7 from v6 and got the following crash report when launching the old world from v6 in v7.

Code:
---- Minecraft Crash Report ----
// Would you like a cupcake?
 
Time: 23.1.2013 20:08
Description: Exception in server tick loop
 
java.lang.NoClassDefFoundError: ays
    at mod_ReiMinimap.getVersion(mod_ReiMinimap.java:16)
    at cpw.mods.fml.common.modloader.ModLoaderModContainer.getVersion(ModLoaderModContainer.java:423)
    at cpw.mods.fml.common.Loader.loadMods(Loader.java:483)
    at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:86)
    at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:345)
    at ho.c(DedicatedServer.java:64)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)
    at fy.run(SourceFile:849)
Caused by: java.lang.ClassNotFoundException: ays
    at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:185)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 8 more
Caused by: java.lang.NullPointerException
    at org.objectweb.asm.ClassReader.<init>(Unknown Source)
    at codechicken.core.asm.ClassHeirachyManager.transform(ClassHeirachyManager.java:80)
    at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:228)
    at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:173)
    ... 10 more
 
 
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
 
-- System Details --
Details:
    Minecraft Version: 1.4.7
    Operating System: Windows Vista (amd64) version 6.0
    Java Version: 1.7.0_07, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 517569776 bytes (493 MB) / 648740864 bytes (618 MB) up to 954466304 bytes (910 MB)
    JVM Flags: 2 total; -Xms512M -Xmx1G
    AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    Suspicious classes: FML and Forge are installed
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP v7.26 FML v4.7.10.524 Minecraft Forge 6.6.0.499 33 mods loaded, 33 mods active
    mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed
    FML [Forge Mod Loader] (coremods) Unloaded->Constructed
    Forge [Minecraft Forge] (coremods) Unloaded->Constructed
    CodeChickenCore [CodeChicken Core] (coremods) Unloaded->Constructed
    NotEnoughItems [Not Enough Items] (coremods) Unloaded->Constructed
    BuildCraft|Core [BuildCraft] (buildcraft.jar) Unloaded->Constructed
    BuildCraft|Builders [BC Builders] (buildcraft.jar) Unloaded->Constructed
    BuildCraft|Energy [BC Energy] (buildcraft.jar) Unloaded->Constructed
    BuildCraft|Factory [BC Factory] (buildcraft.jar) Unloaded->Constructed
    BuildCraft|Transport [BC Transport] (buildcraft.jar) Unloaded->Constructed
    BuildCraft|Silicon [BC Silicon] (buildcraft.jar) Unloaded->Constructed
    ChickenChunks [ChickenChunks] (chickenchunks.jar) Unloaded->Constructed
    EnderStorage [EnderStorage] (enderstorage.jar) Unloaded->Constructed
    ExtrabiomesXL [ExtrabiomesXL] (extrabiomesxl.jar) Unloaded->Constructed
    Forestry [Forestry for Minecraft] (forestry.jar) Unloaded->Constructed
    mod_InvTweaks [Inventory Tweaks] (invtweaks.zip) Unloaded->Constructed
    IronChest [Iron Chest] (ironchest.zip) Unloaded->Constructed
    Mystcraft [Mystcraft] (mystcraft.zip) Unloaded->Constructed
    NEIPlugins [NEI Plugins] (neiplugins.jar) Unloaded->Constructed
    ObsidiPlates [Obsidian Pressure Plates] (obsidiplates.zip) Unloaded->Constructed
    ThermalExpansion [Thermal Expansion] (thermalexpansion.zip) Unloaded->Constructed
    OmniTools [OmniTools] (omnitools.zip) Unloaded->Constructed
    Railcraft [Railcraft] (railcraft.zip) Unloaded->Constructed
    mod_ReiMinimap [mod_ReiMinimap] (reiminimap.zip) Unloaded->Constructed
    SecretRoomsMod [The SecretRoomsMod] (secretroomsmod.zip) Unloaded->Constructed
    SoulShards [SoulShards] (soulshards.zip) Unloaded->Constructed
    StevesCarts [Steve's Carts] (stevescarts.zip) Unloaded->Constructed
    Thaumcraft [Thaumcraft] (thaumcraft.zip) Unloaded->Constructed
    ThermalExpansion|NEI [NEI] (thermalexpansion-nei.zip) Unloaded->Constructed
    ThermalExpansion|Factory [Factory] (thermalexpansion.zip) Unloaded->Constructed
    ThermalExpansion|Energy [Energy] (thermalexpansion.zip) Unloaded->Constructed
    ThermalExpansion|Transport [Transport] (thermalexpansion.zip) Unloaded->Constructed
    TwilightForest [The Twilight Forest] (twilightforest.zip) Unloaded->Constructed
    Profiler Position: N/A (disabled)
    Is Modded: Definitely; Server brand changed to 'fml'
    Type: Dedicated Server (map_server.txt)

No idea what this means, looks like related to the minimap somehow though? Or did I do something obviously stupid that I'm not aware of.
The world launches just fine in recommended version(v6).
 

Nessiroj

New Member
Jul 29, 2019
855
0
1
can you upload the serverlog to pastepin? atm it looks liek rei's minimap but that could be just the last error before crashing there could be alot happening before that.
 

Sn0bb

New Member
Jul 29, 2019
22
0
0
I'm little at loss here, you want the ForgeModLoader-server.log? Or where can you find the server log, only have "server" file and it basically includes the same as above since this happens at startup.

Here is the forgemodloader log though just in case:
Pastebin
 

Nessiroj

New Member
Jul 29, 2019
855
0
1
it aint missing. the server textfile in your screenshot is the one we wanna see on pastbin
you don't see the .log since you have extentions turned off ;)
 

Nessiroj

New Member
Jul 29, 2019
855
0
1
wow thats really quick indeed, the server is starting and instantly crashing..... normally i whould see some more info in the serverlog.
i think hes missing a class from rei's minimap.

Your running a server or singleplayer? cause rei's minimap shouldn't be on a server, only on the client.
Incase of single player can you try a force update of the v7 pack, i think some mods got broken
 

Sn0bb

New Member
Jul 29, 2019
22
0
0
This is ofcourse server side, which is why I posted in server help section.
REI's minimap was included in the server files though. So it must be that the server package included SinglePlayer files in it.

Also as a sidenote, it seems that the server files are properly uploaded now as I was able to download server files which didn't include SP stuff anymore. Won't be updating for a while though.
Marking this as solved.