http://pastebin.com/KyfjBDrm

Crash on startup.

I've narrowed this down to a problem with the newest version of DragonAPI from @ReikaKalseki. Having v7 of DragonAPI in the folder explodes Gendustry. Here's a more focused crashlog with only DragonAPI.

http://pastebin.com/E1dyPU6Z

can also confirm this happened to me after updating dragonapi, reactor craft, electric craft, and rotary craft.

Caused by: java.lang.SecurityException: class "net.bdew.gendustry.api.blocks.IForestryMultiErrorSource"'s signer information does not match signer information of other classes in the same package

I'm not sure why Reika needs to ship my API at all, but he most definitely should not be signing it.

I don't think there's anything i can do to fix it from my side.

I do not ship the Gendustry API.

EDIT:
Make that "intentionally".

This will be fixed in v7b. Until then, delete the API from my jar.

http://i.imgur.com/ax6seqA.png

And it's signed in your jar

This is fixed for v7b.