Crafting recipes not work in 1.21.1

hey i try make a new recipes with and dont work 
{
    "type": "minecraft:crafting_shaped",
    "pattern": [
        "  #",
        " i ",
        "#  "
    ],
    "key": {
        "#": {
            "item": "minecraft:emerald"
        },
        "i": {
            "item": "minecraft:iron_ingot"
        }
    },
    "result": {
        "id": "minecraft:knowledge_book",
        "count": 1
    }
}
the datapack not view recipe for /recipe take @s "datapack"  "my recipe"
im french sorry for my bad english