FTB won't launch.

[MoosyDoosy]

I'm sorry for taking up your time and forum space, but I'm having trouble with loading my FTB. After I download FTB Unleashed, because I will be playing in a multiplayer server with it, it crashes after downloading. After I attempt to open with the FTB launcher once more, it stays at "Loading Minecraft class." I am using a Macbook Air, have placed 4 GB on the RAM just to be sure, and have used the default launcher from the official FTB website. Thank you to anyone who solves this issue.
This is the pastebin for the error:
http://pastebin.com/kdSYmuy2

 

[Dragon_Mind]

Whats happeining is that FTB launcher isn't supposed to run with java 7, which is what all macs come standard with (and is what yours has)

Follow the directions in this link to re-enable java 6

then things should work fine.

https://support.apple.com/kb/HT5559

good luck this worked for me so hopefully it should work for you.

 

[Ashzification]

Any launcher using Forge won't launch for macs using Java 7 (when using the default LWJGL files)