I'm trying to set up a modded minecraft server on my Mac.

I am on Mojave 10.14.6 and I have Java SE Oracle JDK 15.0.1 installed.

Each time I attempt to open the file forge-1.12.2- I get prompted with a warning "The Java JAR file "forge-1.12.2-" could not be launched." enter image description here

I also tried opening it with Terminal, relocating the directory and inputting java -jar forge-1.12.2- but here, i got the error back.enter image description here

Unfortunately, I am unable to read code. I've done my researched and found multiple others with the same problem but they all had to do with their MANIFEST.MF file, I don't believe that is my case here, from the minimal info I could make out of the error message, I was wondering if anyone can help me find out what is the problem and how I can fix it. Thanks!

  • 2
    Copy and paste the error code, instead of including a screenshot.
    – Joy Jin
    Commented Dec 26, 2020 at 2:51
  • Yes pleas with my eyesight I can't read the text so I can't help you
    – mmmmmm
    Commented Dec 26, 2020 at 15:49

1 Answer 1


It works, I just have to update my java. sigh.

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