I don't know what happened but, I was playing Minecraft and everything was working perfectly. Next day I get on and it made me redownload the game. And all my versions are gone! All my versions are in my versions folder, but when I open my Minecraft launcher and go into "Use Version" nothing is in there?! Please help!

Also, If this is helpful, all my resourcepacks work great. It's just my versions that don't work.

(One last thing, it's only my mod versions. Like Optifine, and Forge.)

closed as off-topic by Dragonrage, Gigazelle, Tim S., Fredy31, Wondercricket Jul 12 at 1:07

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  • "It's only my mod versions" -> question is off topic as tech support for modded minecraft. – pppery Jul 11 at 16:29
  • 4
    I'm voting to close this question as off-topic because it is asking about modded mc support – Dragonrage Jul 11 at 16:45

Redownloading the launcher will cause this problem. There is a .json file in the .minecraft directory that saves all that information. It has most likely been erased so there is no way to retrieve it but by re-running the installers for optifine and forge will fix your issue.

  • Redownloading the launcher? You mean game version? – Universal Electricity Jun 9 '15 at 15:23
  • When the minecraft launcher is downloaded it creates launcher files in the .minecraft directory. One of the files stores all the minecraft versions. When the launcher is reinstalled it overwrites these files resulting in the missing mod versions. – mhsjlw Jun 9 '15 at 15:25
  • I don't think so. I'm not seeing anything that suggests that. I think it gets the list from the mojang servers. Otherwise could you say which file it is? – Universal Electricity Jun 9 '15 at 15:28
  • The file is named versions.json and is retrieved from s3.amazonaws.com/Minecraft.Download/versions/versions.json when it is downloaded it overwrites the current file in the directory – mhsjlw Jun 9 '15 at 15:30
  • Which folder is it in? I still don't see anything – Universal Electricity Jun 9 '15 at 15:38

On the latest launcher, going to Installations > (+) New > Version, I was able to find the mods I installed, despite them not appearing under my profiles before.

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