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Feed the Beast not launching!

#1 Jan 3, 2014
demon571
demon571

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I really need help. I installed the FTB launcher - no problem. but when i tried actually launching FTB, this error occured:

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

and a window on my screen pops up and says:

--Java Virtual Machine Launcher--
Could not find main class. Program will exit!

I have no idea what it means and i need help

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