Zigiy

I did what Ioakim said, and uninstalled everything. Restart & Then re-install everything. No success. Still get the same error. The problem is the mod_IC2AdvancedMachines: Unsupported major.minor 51.0 And whats the report format?

Oh and I'm using Windows 7 Home premium, 64bit version. I can give you my processor models & such if you wish. But I doubt thats whats causing the problem.

Hello forum! Another kid with a problem with Tekkit. I am getting the error "...6 more" The full error is here: Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at net.minecraft.server.ModLoader.addMod(ModLoader.java:172) ... 6 more ANYWAY. I have done as you have suggested in previous threads about this error, and that is to download Java JRE7. It was very hard to find, but I finally found a copy of it. Anyway I then tried again. No success. I also tried doing what "Viderizer" did with the Step-by-Step installation instructions and it was no help at all. Please help, I have un-installed, re-installed both Java 6 & 7 (BOTH 64 bit Versions) and even tried running it without java 6 installed (Didnt work well trust me). Getting quite desperate! Whenever I watch a YouTube tutorial they all do the same thing as me, but they never get this error. Please help really frustrating!