adasg2007 Posted April 19, 2020 Share Posted April 19, 2020 (edited) I have a problem with Minecraft 1.15.2 crashing after installation of Forge 31.1.0 and later with message: [net.minecraft.util.registry.Bootstrap:func_179870_a:103]: ---- Minecraft Crash Report ---- // Oh - I know what I did wrong! Time: 19.04.20 20:35 Description: Initializing game java.lang.ClassFormatError: Duplicate method name&signature in class file net/minecraft/client/renderer/Matrix4f I put logs: debug.log - https://pastebin.com/F6EKcgPj latest.log - https://pastebin.com/YrTDUgDH Will appreciate much for any help have a nice day Adam Edited April 19, 2020 by adasg2007 more data Quote Link to comment Share on other sites More sharing options...
adasg2007 Posted April 19, 2020 Author Share Posted April 19, 2020 Hi - many thanks - we removed OptiFroge and we don not have this error. But now we have repeatedely loading red progress bar on Mojang title screen and nothing more happens I put again logs: debug - https://paste.gg/p/anonymous/b86a0e8c3e9642da825389a627edeb24 latest - https://paste.gg/p/anonymous/25512764963f48c6ad34b8ae7a8aeee7 again thnkx for the support !! Adam Quote Link to comment Share on other sites More sharing options...
adasg2007 Posted April 19, 2020 Author Share Posted April 19, 2020 Thank you very much. My addon blocked the website that i was downloading mods from(i didn`t have the addon until today). I deleted all my mods and now I am downloading the proper ones :). I will keep you posted. Quote Link to comment Share on other sites More sharing options...
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