EntityRenderer Crash on Launch

[Alterna]

Hello all,

I recently started on making my own modpack for the server I play on with some friends since there was no pack we found that had all the mods we wanted- neither Technic, FTB or ATLauncher could deliver. I decided to work with the Technic launcher because it was just too much work to get all the permissions required for FTB or AT for a 5-man server and this would make distribution really easy. After a whole load of problems- varying from the 'unzip error' (Dropbox...) to the launcher loading vanilla MC (a derp on my end, accidentally ZIPped the main folder), I finally got it to launch with Forge as well as download all the mods and config files- on my friend's end, that is. My PC boots to the mojang screen and then reverts to the launcher -Crash Report-, and it never even makes it to the game screen. I wouldn't be surprised if it was a compatibility issue (I've heard of an issue with MFFS, GalactiCraft and Natura for example), but from what I gather from the crash report it's something fully different. Help would be much appreciated.

TL;DR: Pack dun work, crash report here.

EDIT: If you see any mods in the list that you know will cause issues / are incompatible, please do tell, debugging's been quite the headache.

EDIT2: I thought it might be smart to link to the Modpack page and the Download page.

EDIT3: Added TLDR, wasn't getting much help and thought it might be the wall of text.

[TwoTails]

it looks like it has something to do with arsmagica2.

try removing it, and see if it crashes.

[Alterna]

it looks like it has something to do with arsmagica2.

try removing it, and see if it crashes.

I've removed it and gotten the exact same crash report, save the time/date signature. It's really strange since the CR doesn't seem to refer to any specific mods.

[planetguy]

WorldCore's ASM transformer is barfing at the EntityRenderer class. You can try without it, but Biomes O Plenty might crash and will have less features.

[Alterna]

WorldCore's ASM transformer is barfing at the EntityRenderer class. You can try without it, but Biomes O Plenty might crash and will have less features.

Ah, thanks. I updated to a newer version of BoP and removed the old Worldcore.JAR and I can now get past the launcher. Still unable to play since FML is giving me an error saying that it's missing Forge Build 9.11.1.953, but it's a start.