I making some custom emchantment, and would like them to show up on an Custom ItemGroup, but i don't know where to start, i tried looking into some classes and did some google about it, but can't find anything usefull.
Some zip managers like to take control of the .jar file extension away from Java.
Make sure you have Java installed and try running Jarfix once, then try the installer again.
Also, 1.12 is out of support, update.
i am unable to install jar files only exe files i would ask if you could change all the files to exe files, like the older versions i want the most recent version of 1.12.2 for a certain mod but cant cause its a jar file