Tekkit 2.1, Windows, Java 64x Unexpected exeption?

[Black_Mist]

Tekkit 2.1, Windows, Java 64x when I try to start a tekkit 2.1 server It will work until

FINER: THROW

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

and then says stuff about class files and unknown stuff.

Please Help!!!!!

[Black_Mist]

Here is the pastebin sorry

http://pastebin.com/HUGV6emP

[Milk]

Read the stickies.

http://forums.technicpack.net/index.php/topic,2834.0.html

It even says it in the title, for crying out loud.

And edit your post instead of making another post, like I did.

[Black_Mist]

Thank you and sorry for re-posting and not reading that post I am new to these forums.

[Black_Mist]

I installed Java 7 JRE and JDK both didn't work, I configured it to the posts on that thread but nothing worked? Help please!

[Black_Mist]

Can someone please help? I really want to play tekkit with mah friends.

[Milk]

Did you make sure it's the right version for your OS?

By that I mean 32 bit or 64 bit. Also, you can't just say you have "Windows". There are different versions of windows.

Put something like "Windows 7 32bit".

[Black_Mist]

Re: Tekkit 2.1, Windows 7 64x, Java 64x Unexpected exeption?

I have windows 7 64x and thats the download I did, and sorry for not specifying

[Milk]

I'm not sure at this point. Try reinstalling java, I guess?

But only install JRE. You don't need both, and that might be an issue.

[Taranis]

Have you also tried this?

If you install Java, it does not remove old versions. You can manually control the version it is using under Windows by going to the Control Panel and opening the Java icon there.

Go to the "Java" tab, then click "View..." (under Java Runtime Environment Settings). This will show the versions of Java installed to your machine. If you have some programs that still require a different version of Java, I would recommend not removing old versions, but instead controlling what applications use each. You can also simply uncheck Enabled for your old versions if you are unsure about removing them. Just make sure to leave the 1.7 version enabled for Minecraft's server.

If nothing works and you can live without the advanced machines, then you could just disable them.

[Black_Mist]

Milks idea worked but thanks for replying, but thanks a lot MILK!