mongooseAllSelectorError.js

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

var dbUrl = 'DB_URL HERE';



//Initialize mongoose
var mongoose = require('mongoose');
mongoose.connect(
  dbUrl,
  {auto_reconnect: true, poolsize: 5}
);


//Player SChema
var PlayerSchema = new Schema({
  firstname: {type: String},
  lastname: {type:String},

  //Other info here
});
var Player = mongoose.model('Player',PlayerSchema);

//Lightweight version of a player that we use to pre-fill a team roster
//in order to perform most team-related queries without having to load 
//a complete player profile everytime.
var CachedPlayer = new Schema({
  playerRef: {type: Schema.ObjectId, ref: 'Player'},
  //And we only cache parts of the info
  lastname: {type: String}
});

//Team Schema
var TeamSchema = new Schema({
  teamname: {type:String},
  roster :[CachedPlayer],

  //Other info here
 });
var Team = mongoose.model('Team',TeamSchema);

//Let's create some dummy players
var Iginla = new Player();
Iginla.firstname = 'Jarome';
Iginla.lastname = 'Iginla';
Iginla.save(function(){

var Crosby = new Player();
Crosby.firstname = 'Sidney';
Crosby.lastname = 'Crosby';
Crosby.save(function(){

var Malkin = new Player();
Malkin.firstname = 'Evgeni';
Malkin.lastname='Malking';
Malkin.save(function(){

//Let's put them into team canada and the pittsburg's penguin
var Penguin = new Team();
Penguin.roster.push({_id: Crosby._id, lastname: Crosby.lastname});
Penguin.roster.push({_id: Malkin._id, lastname: Malkin.lastname});
Penguin.save(function(){

var Canada = new Team();
Canada.roster.push({_id: Crosby._id, lastname: Crosby.lastname});
Canada.roster.push({_id: Iginla._id, lastname: Iginla.lastname});
Canada.save(function(){


//Now I'd like all the teams that have Jarome Iginla AND Sidney crosby in their 
//roster. (I received the Ids from a user search for example.)
Team.find({'roster.playerRef' : {$all: [Crosby._id, Iginla._id]}},function(e,d){
  console.log('err: ', e); //<-- Here's the error.
  console.log('doc: ', d);
});
});
});
});
});
});