I am on a mac, and I am getting the 2.1 startup error. Any fixes for mac osx?

[Niciboy8]

[sEVERE] Unexpected exception

java.lang.RuntimeException: ModLoader has failed to initialize.

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

I am getting this error, on a mac. Any fixes?

[Shimmen]

I have the same problem. But i don't know the answer :-[

[havocx42]

...

Caused by: java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_IC2AdvancedMachines : Unsupported major.minor version 51.0

...

Perhaps the thread named "*FIX* mod_IC2AdvancedMachines : Unsupported major.minor version 51.0" on the bug board is where you want to look.