I cant open any modpack

  • Tech Support section is for getting help with FTB related problems. If there's a repeatable issue that can be labeled as a bug, then please use the issue tracker for the pack or the app at GitHub issue trackers - If there's no repository for a pack that means that the pack is old and/or will not be updated. Bugs for older packs will not be fixed, unless they are critical.
  • The FTB Forum is now read-only, and is here as an archive. To participate in our community discussions, please join our Discord! https://ftb.team/discord

grandrolf

Global moderator
Team Member
Global Moderator
Trusted User
Aug 29, 2014
2,658
246
133
sweden
Download, install and use 64-bit version of java.

Post new log if it still fails.
 

ShneekeyTheLost

Too Much Free Time
Dec 8, 2012
3,728
3,004
333
Lost as always
Actually, I think the problem is this:

Code:
[17:33:48] [DEBUG] ErrorUtils.showClickableMessage:104: Invalid username or password. <ul><li> Check your username and password. If you use new mojang account try using email instead of username.<li> You need to use  paid minecraft account credentials. Mojang account without paid MC won't work.<ul>

Mod packs require you to purchase the game to enjoy.