Rpc error: code = Unknown desc = Input for predicate author of type uid is scalar

Users Dgraph
18

Thanks for the quick reply. When I try to run the command it says

Your query did not return any results

But when I try to run:

{
  exists(func: uid(0xa)) {
    uid,
    title,
    description,
    user {
      uid,
      username,
    }
  }
}

It returns:

{
  "data": {
    "exists": [
      {
        "uid": "0xa",
        "title": "My board",
        "description": "My Description",
        "user": [
          {
            "uid": "0x1",
            "username": "My Username"
          }
        ]
      }
    ]
  },
  "extensions": {
    "server_latency": {
      "parsing_ns": 63064,
      "processing_ns": 669373,
      "encoding_ns": 2528204
    },
    "txn": {
      "start_ts": 154,
      "lin_read": {
        "ids": {
          "1": 50
        }
      }
    }
  }
}

I ran the command like this:

{
  var(func: uid(0x1)) {
    userBoards as board {
      uid
    }
  }
  theUserBoards(func: uid(userBoards) ) {
    uid
    title
    description
  }
}

because in my schema I changed to use lowercase, and I called it board: uid @count . instead of Boards.