I'm trying to create a modpack using the technic launcher which specifically needs you to use the forge universal.jar and extract it to create the pack. However, whenever I try to run the file as instructed, it simply doesn't open, and only shows a loading cursor for a moment before nothing else. Task Manager shows no java processes are running when this happens. I tried using cmd to manually run the file like some other threads have said, and got back "no main manifest attribute, in forge-1.14.4-28.2.19-universal.jar"
Every other thread I've searched through online to try and find a solution has either been for a different situation or simply said "don't use the universal then", which is not an option for me. I've tried using the other methods of installing it, and when the game runs, it runs fine, but without forge or any sign of it being present.