FTB Launcher issue.

[Eagleee]

http://pastebin.com/AyN6Qp0P

I tried updating my launcher because I was notified to please do so, and when I did that my console sent me this and then woudln't update the client.

 

[UniZero]

This error is caused by having multiple java versions installed. Remove all versions and install the latest one from here.