Voltz immediate crash.

[Sutallite]

Hi, I'm new here and don't really know how to word this, but whenever I open one of the more recent modpack updates, (such as Voltz 3.1.2), the window will open and close immediately. Not even a crash report. Press play, flicker, back to launcher. It doesn't seem to affect older versions of modpacks.

I've tried launcher BETA and the default one, to no avail.

The launcher is allocated 3Gb, I'm on OSX Yosemite, 4Gb ram macbook pro with an intel iris graphics card.

 

From trying voltz 3.1.2:

Have an output log.

Have a log(The others were blank) http://pastebin.com/bzLdnWp5

 

I don't know if there's a fix for this, I'm a bit n00by, sorry if someone's already done something.

 

[Valiant70]

This happens to me too! Why has no one even tried to help yet?

[AetherPirate]

Add Lexmanos java legacy fixer.