Dev_resources 404

REST API
1 
curl -H 'X-FIGMA-TOKEN: XXX' 'https://api.figma.com/v1/files/f85djbluQK0fNDHRR6B9YL'

{
  "document": {
    "id": "0:0",
    "name": "Document",
    "type": "DOCUMENT",
    "scrollBehavior": "SCROLLS",
    "children": [

curl -X POST -H 'X-FIGMA-TOKEN: XXX' -H "Content-Type: application/json" 'https://api.figma.com/v1/dev_resources' -d '{"dev_resources":[{"name":"something","url":"https://test.fake/12","file_key":"f85djbluQK0fNDHRR6B9YL"}]}'

{
  "links_created": [],
  "errors": [
    {
      "file_key": "f85djbluQK0fNDHRR6B9YL",
      "node_id": null,
      "error": "File not found"
    }
  ]
}