[3.0.3/3.0.4] Server won't start up

[MysticDragonMaster]

Title: Server won't start up

Version: 3.0.3/3.0.4

OS: windows 7 Ultimate 64 bit

Java Version: 7 update 5

Description of Problem:

When I open the .bat file that comes with the server software i get a long error message about nether ores. I get the same error in 3.0.3 and 3.0.4

Error Messages:

14:22:46 [sEVERE] java.lang.UnsupportedClassVersionError: net/minecraft/server/mod_NetherOres : Unsupported major.minor version 51.0

[The_DarthMoogle]

Unsupported major.minor means you got the wrong version of Java

Get 64 bit, and check to see what current install(s) you may have, and get rid of them just for sure.

[MysticDragonMaster]

Works, thanks!