Minecraft Forums

Hello,

I've been putting mods on my son's computers for some time now without issues. We just got a new computer. I put a clean copy of Minecraft on it & set everything up as a I always do (loaded forge & the requested mod for them) Minecraft will not even open when I click on the forge profile. I looked in my roaming & everything is there. I'm running the latest Java. Forge installs without issue. It's all set up just like our other modded laptops, but Minecraft won't open up to forge. It will run vanilla Minecraft without issue.

The only think I notice that's different on the new download of minecraft is that is says "realms" where the mod tab usually shows up. That is not on our other laptop. That is the spot that the "mods" tab is visible on our other laptop.

Help? I have 2 kids fighting over our only working mod computer at the moment

grimallq- you are absolutely awesome. thanks for taking the time to reply. it fixed the issue perfectly. my boys say "thanks!"

Spoke too soon! Minecraft now opens & loads to the forge profile with the java fix in the mod folder, but crashes every time my son tries to play a world. We are closer Mods are shown now. Any other ideas?

Here is the crash report- thanks!!!!



---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 3/13/15 4:19 PM
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: JavaBuckets/Mods/StarWars/Providers/ChunkProviderHoth
at JavaBuckets.Mods.StarWars.Providers.WorldProviderHoth.func_76555_c(WorldProviderHoth.java:28)
at net.minecraft.world.WorldServer.func_72970_h(WorldServer.java:728)
at net.minecraft.world.World.<init>(World.java:291)
at net.minecraft.world.WorldServer.<init>(WorldServer.java:110)
at net.minecraft.world.WorldServerMulti.<init>(WorldServerMulti.java:13)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:77)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:107)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:445)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
Caused by: java.lang.ClassNotFoundException: JavaBuckets.Mods.StarWars.Providers.ChunkProviderHoth
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 9 more
Caused by: java.lang.ClassFormatError: Duplicate method name&signature in class file JavaBuckets/Mods/StarWars/Providers/ChunkProviderHoth
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:178)
... 11 more


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

-- System Details --
Details:
Minecraft Version: 1.6.4
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 89414176 bytes (85 MB) / 222969856 bytes (212 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
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 v8.11 FML v6.4.49.965 Minecraft Forge 9.11.1.965 4 mods loaded, 4 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized

I'm sorry grimallq- can you tell me how to run that for you? I really appreciate your help