minecrack modpack wont open

  • 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.

StasiS Swift

New Member
Jul 29, 2019
minecrack modpack wont open
Launcher Version:
Modpack Version:
Log Link:
Details of the issue:
I click launch amd no minecraft window comes up. In the launcher console it says

Logging in...
Beggining authlib authentication attempt
Successfully created Yggdrasilauthenticationservice
Setting up native libraries for Minecrack Pack Recommended Version Mc
Syncing Assets:
Wrong key: java.lang.Exception:
Wrong Key: java.lang.Exception:
Java Path: C:\Program Files\Java\jre1.8.0_45\bin\javaw.exe
Pack: Minecrack Pack 1.4.7
Setting Minmemory to 256
Setting Minmemory to 1024
Error: Could not find or load main class net.ftb.legacylaunch.Launch

It does load ethos modpack and crash landing. But not this or ftb lite.