Minecraft Forums

I'm running 1.7.4 and after trying to launch version "Huzuni" the launcher disappears then reappears...I've already tried deleting the minecraft folder.

Note: I'm using a Mac

Not sure if this helps, but here's the most recent error log

[22:17:22 INFO]: Client> Exception in thread "main" java.lang.UnsupportedClassVersionError: net/minecraft/client/main/Main : Unsupported major.minor version 51.0
[22:17:22 INFO]: Client>  at java.lang.ClassLoader.defineClass1(Native Method)
[22:17:22 INFO]: Client>  at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
[22:17:22 INFO]: Client>  at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
[22:17:22 INFO]: Client>  at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
[22:17:22 INFO]: Client>  at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
[22:17:22 INFO]: Client>  at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
[22:17:22 INFO]: Client>  at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
[22:17:22 INFO]: Client>  at java.security.AccessController.doPrivileged(Native Method)
[22:17:22 INFO]: Client>  at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
[22:17:22 INFO]: Client>  at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
[22:17:22 INFO]: Client>  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
[22:17:22 INFO]: Client>  at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
[22:17:22 ERROR]: Game ended with bad state (exit code 1)
[22:17:22 INFO]: Deleting /Users/Zane/Library/Application Support/minecraft/versions/huzuni/huzuni-natives-1391311041958264000
[22:17:22 INFO]: Ignoring visibility rule and showing launcher due to a game crash