Bad_Monkey

Minecraft: Minecraft 1.2.5 OS: Windows 8 (x86) version 6.2 Java: 1.7.0_45, Oracle Corporation VM: Java HotSpot Client VM (mixed mode), Oracle Corporation LWJGL: 2.9.0 OpenGL: Intel® HD Graphics 4000 version 4.0.0 - Build 9.17.10.2867, Intel java.lang.NullPointerException at cpw.mods.fml.common.modloader.ModLoaderModContainer.init(ModLoaderModContainer.java:356) at cpw.mods.fml.common.Loader.modInit(Loader.java:273) at cpw.mods.fml.common.Loader.initializeMods(Loader.java:628) at cpw.mods.fml.client.FMLClientHandler.onLoadComplete(FMLClientHandler.java:223) at net.minecraft.client.Minecraft.a(Minecraft.java:429) at net.minecraft.client.Minecraft.run(Minecraft.java:738) at java.lang.Thread.run(Unknown Source) --- END ERROR REPORT 8bc0e20f ---------- i get this error report when i update to 3.1.3/3.1.2. Anyone know what it means? edit: it is possible to use 3.1.1 but then texture packs don't work

This helped me for hack/mine but not tekkit classic or yogbox. thanks anyway. edit- i later got all to work by re-downloading the launcher and setting it to the last stable build

I have this exact same problem. i think it may be something to do with java. Do any other modpacks not work for you?

Whenever i try to launch tekkit classic, java virtual machine launcher pops up with an error message saying "Could not find the main class: net.technicpack.legacywrapper.Launch. Program will exit." Does anyone know what this means?