mc = class net.minecraft.client.minecraft

[MrSamuelAdam4]

http://pastebin.com/1aStuXxp

I've even tried to force update it & it still wont work. MineCraft works just fine but FTB refuses work. Can someone please help?

 

[TheSandwichMakr]

Download multimc from forkk.net and import the modpack and try launching it with mutlimc.

 

[reikozunaken]

MultiMC reports the game crashed. I also imported my working Ultimate to make sure I did it correctly and it launched fine. I still believe the minecraft bin files are corrupt in the FTB download.

 

[TheSandwichMakr]

Try using force update in multimc, if it is the ftb launcher downloading the minecraft files incorrectly, then multimc should be able to download the correct ones and replace them.

 

[Ashzification]

Try Force Updating the launcher

 

[reikozunaken]

OP, give it another shot on the normal launcher. It looks like someone fixed the download last night. All my stuff is working today after a force update.