Download from https://libraries.minecraft.net/net/java/dev/jna/jna/4.4.0/jna-4.4.0.jar had invalid checksum! Expected: cb208278274bf12ebdb56c61bd7407e6f774d65a got: 709812c309e7bd28c63825ff5b77c121d05051aa
11:11:07.087
Unable to download https://libraries.minecraft.net/net/java/dev/jna/jna/4.4.0/jna-4.4.0.jar to
Steps to reproduce:
Select a version of the game in twitch/vanilla forge you haven't selected before
Select 1.7.10, or 1.12.2
Launch with forge
Notice it no longer fetches the libraries from the json file
Many many library errors are happening like this across minecraft versions. It's not just this library specifically
Thank you for your report!
However, this issue is Invalid.
Your game, launcher or server is modified.
If you can reproduce the issue in a vanilla environment, please create a new ticket.
Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the creator of the plugin or resource pack.
If you have problems on large servers, such as The Hive and Hypixel, please contact them first as they run modified server software.
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