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UPDATE (It won't let me edit because it thinks this is spam): I think this happens with 1.10.2 packs.
FTB Beyond wont load with the same error, but ftb inventions will load just fine.
Title Skyfactory 3 ClassNotFoundException on launch
Launcher Type FTB Launcher
Modpack Skyfactory 3
Modpack version 3.0.13
Have you modified the pack? No
Link to log file http://paste.feed-the-beast.com/view/d278c667
Details of the issue How I caused the Error:
1. Downloaded...
