Minecraft wiki entry for Creating_resource_pack_add-ons, associated text: If you don't see your pack in-game, make sure your manifest.json is correct. Look for any missing curly braces { }, commas, colons :, quotation marks " ", or square brackets [ ]. Remember for each open brace, quotation, or square bracket, you must have a closing brace, quotation, or square bracket. You can also use a JSON validator like JSONLint to validate (and correct) your JSON-file. Using visual studio code will tell you any errors.