The jester

when following this video: https://www.youtube.com/watch?v=B-RRhZKe8oE and having my code look like this { "parent": "Item/generated", "textures": { "layer0": "fastestthingalive:item/ring" } } my textures aren't loading and it gives this error : [11:00:50] [Worker-Main-17/WARN]: Unable to load model: 'fastestthingalive:example_item#inventory' referenced from: fastestthingalive:example_item#inventory: net.minecraft.ResourceLocationException: Non [a-z0-9/._-] character in path of location: minecraft:Item/generated sorry if this is simple, i just wondering what im doing wrong