Gonna cut to the chase on this one. No flashy fonts or headlines. Check out Aether117's thread if you haven't already (basically, download Optifine 1.13.2 for the resource pack to work). If you're like me, however, and you already had Optifine 1.13.2 when the resource pack didn't work, you'll need another solution. Here's what worked for me. Put the resource pack on Prompt. Open the Run window by pressing Winkey + R. Enter %appdata% Find .minecraft Find server-resource-packs Delete all the files from within that folder. For me, the SchoolRP file was named "d739d0a30c9666f85a6e54992593c9f50f95e17d", even after repeating this step, but I can't guarantee it will be that for you. If you have a file with that name, just delete that one. Next time you open SchoolRP, it'll re-download the pack and should work.