My client crashes each time I try to load it with GenDestry and newest Forestry 4. Here's the report: http://pastebin.com/WGY5KyWA

You need to use the -fu versions of gendustry with forestry 4.0 beta.

http://minecraft.curseforge.com/mc-mods/70492-gendustry/files/2259909

@bdew
I get the same/similar crash with the stable Version 4.0.2.30 from Forestry.
Have to using the fu branche here too ?
http://jenkins.ic2.player.to/job/Forestry/30/

4.0.2 is beta, the last stable forestry is 3.6.x
yes you need to use fu from for anything 4.0 until it's officially released and i merge the fu branch into the main one.

Ok crash too because binnies Mod ;-(

Yeah there's a bunch of backwards incompatible stuff in 4.0, all addons need to be updated

Using old version than and hope Binnie and the others will fix it soon.
Thanks for help.

I reported this to Binnie, but he's inactive and he isn't replying any of its mods bugs.

Yes we can only hope that he have time on christmas when he have probably free time.

WHAT? CHRISTMAS? I don't have patience to wait until then.

Anyway, there's another crash with GenDustry: http://pastebin.com/3MDjtiTF

Probably another mod that adds bees that isn't updated to Forestry 4.0 API. Maybe Magic Bees?