I need help with this error that keeps poping up every time i try to launch a mod :(

[Bryan Foster]

java.lang.UnsupportedClassVersionError: net/ftb/mclauncher/MinecraftLauncher (Unsupported major.minor version 50.0)

this is the error that shows up. ive updated java and it still wont work

can someone please help me resolve this issue... many of my friends are having the same issue

 

[Algester]

are the mods on compatible versions of forge... like are they built for 1.6.x

 

[Bryan Foster]

they are 1.6.4
i redownloaded ftb and java and it does it still

 

[TheAwesomater]

Sometimes the problem may be with lywgl. You may need to download this.

 

[Bryan Foster]

i updated that so it supported java and 1.6.4 and it still doesnt work

 

[Bagman817]

I'd suggest trying the support forum. When you do, you'll need to submit considerably more information than you have. From what you've written, I don't know if you're trying to add a mod to an existing pack, what pack you're using, what OS you're using, or what version of java you have. All those are pretty important, along with the complete crash log.

 

[Bryan Foster]

im trying to launch unleashed... idk what needs to be shown for more help

 

[Bagman817]

Read this: http://forum.feed-the-beast.com/threads/important-info-post-format.578/

Then, post your problem (with that info) here: http://forum.feed-the-beast.com/forum/tech-support.14/