Windows .exe 1.6.4 Mod Packs Wont Open Despite Newest Version of Java

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Olly Pittabread

New Member
Jul 29, 2019
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Ever since the 1.6.4 Mod Packs Came out for the launcher every time i try and open them the launcher crashes before the minecraft/mojang splash screen.

This is the crash which showed in the console
http://i.imgur.com/H04ZDy1.png
[Borrowed Lava Buckets Image since it was the same as mine]
Original Thread: http://forum.feed-the-beast.com/threads/help-help-save-me-tech-supportman.36178/

And they said that it was the Java, so I updated to the latest version of Java (Version 7 Update 45) and I am still getting a crash but it has changed

It now shows:
java.lang.NoClassDefFoundError: org/lwjgl/LWJGLException

I got a screenshot but getting it to paste to paste-bin is near enough impossible since it closes immediately:
[url]http://i.imgur.com/D7ehmG2.jpg[/URL]

Any Solution would be helpful
Thanks in Advance