title: MissingSchemaError: Schema hasn't been registered for model
body: <p>I have a typical Project with Node.js - Express 3 - MongoDB</p>
  
  <p>I'm trying to make a query to my model 'Tweet' in my  /routes/index.js and when I run my app crashed</p>
  
  <pre><code>24 Aug 11:35:07 - [nodemon] starting `node app.js`
  
  /Applications/XAMPP/xamppfiles/htdocs/ocesa/fanocesa/node_modules/mongoose/lib/index.js:286
    throw new mongoose.Error.MissingSchemaError(name);
          ^
  MissingSchemaError: Schema hasn't been registered for model "Teewt".
  Use mongoose.model(name, schema)
  at Mongoose.model (/Applications/XAMPP/xamppfiles/htdocs/ocesa/fanocesa/node_modules/mongoose/lib/index.js:286:13)
  at Object.&lt;anonymous&gt; (/Applications/XAMPP/xamppfiles/htdocs/ocesa/fanocesa/routes/index.js:6:33)
  at Module._compile (module.js:456:26)
  at Object.Module._extensions..js (module.js:474:10)
  at Module.load (module.js:356:32)
  at Function.Module._load (module.js:312:12)
  at Module.require (module.js:364:17)
  at require (module.js:380:17)
  at Object.&lt;anonymous&gt; (/Applications/XAMPP/xamppfiles/htdocs/ocesa/fanocesa/app.js:7:14)
  at Module._compile (module.js:456:26)
  24 Aug 11:35:07 - [nodemon] app crashed - waiting for file changes before starting...
  </code></pre>
  
  <p>This is part of my app.js</p>
  
  <pre><code>var mongoose = require('mongoose');
  
  mongoose.connect('mongodb://localhost/fanOcesa');
  var Schema = mongoose.Schema;
  var ObjectID = Schema.ObjectID;
  
  var Teewt = new Schema({
      cuerpo: String
  });
  
  var Teewt = mongoose.model('Teewt', Teewt);
  
  var app = express();
  
  app.set('port', process.env.PORT || 3000);
  app.set('views', __dirname + '/views');
  app.set('view engine', 'jade');
  app.use(express.favicon());
  app.use(express.logger('dev'));
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(app.router);
  app.use(express.static(path.join(__dirname, 'public')));
  
  // development only
  if ('development' == app.get('env')) {
    app.use(express.errorHandler());
  }
  
  app.get('/', routes.index);
  app.get('/users', user.list);
  </code></pre>
  
  <p>And this is part of my index.js</p>
  
  <pre><code>var Teewt = require('mongoose').model('Teewt');
  
  Teewt.find({}, function(err, docs){
      console.log('docs');
      console.log(docs);
  });
  
  exports.index = function(req, res){
      res.render('index', { 
          docs: docs
      });
  };
  </code></pre>
  
  <p>which would be the correct way to do this query?</p>