most FTB packs don't load anymore

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hotblack desiato

New Member
Jul 29, 2019
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Title most FTB packs don't load anymore

Launcher Type FTB Launcher

Modpack revelation, infinity evolved, etc

Modpack version revelation 1.10, 1.20 and 1.30, infinity 1.4.1, vanilla minecraft 1.12.2

Have you modified the pack? Yes

Link to log file 1.7.10 and 1.12.2: some mods removed. plain minecraft: no mods.

Details of the issue I wanted to show a friend my new 1.12.2 world, and copied my FTB-folder on his compter, redirected the launcher to my folder, and launched FTB revelation 1.10. from then on, he was not able to launch anything, including older versions which have previously worked.

windows 7 pro, java updated to 1.8.161.

What does not work:

Minecraft FTB packs in version 1.12.2, 1.7.10 (tested several packs, aswell as the vanilla install on his computer.

What does work after removal of some registry entries that pointed at older and no longer existent java-versions: Minecraft vanilla 1.0 (1.2.5 did not work)

What does work after clearing the cache of java: Minecraft 1.6.4, FTB mindcrack pack (latest version) in 1.4.7, and it seems as if the FTB-packs in MC 1.6.4 are working again.

So the question is, what is blocking minecraft from running since I have copied my installation to his computer. we have done that in the past, and everything worked just fine.

Please help.
 
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