Minecraft Forums

does anyone know whats wrong?
---- Minecraft Crash Report ----
// Shall we play a game?

Time: 2/5/13 8:19 PM
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 8 (x86) version 6.2
Java Version: 1.7.0_13, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 9989192 bytes (9 MB) / 29773824 bytes (28 MB) up to 259522560 bytes (247 MB)
JVM Flags: 0 total;
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 v4.7.4.520 Minecraft Forge 6.6.0.497 7 mods loaded, 7 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
mod_ReiMinimap [mod_ReiMinimap] ([1.4.7]ReiMinimap_v3.2_06.zip) Unloaded->Constructed
DivineRPG [DivineRPG] (DivineRPG1.2.7.jar) Unloaded->Constructed
Profiler Position: N/A (disabled)
Is Modded: Definitely; Server brand changed to 'fml'
Type: Dedicated Server (map_server.txt)

I think the problem is you installed Rei's minimap on the server (Rei's Minimap only goes on the client).

then why does it work on tekkit servers but not a regular server?

ok nevermind i get what yout saying, Thank you!!