Uncaught TypeError: _model2.default.findAsync is not a function

[LizanLycan]

Apparently it does not recognize the methods implemented with "Bluebird", what could be done?

var LinvoDB = require("linvodb3");
var Promise = require("bluebird");
Promise.promisifyAll(LinvoDB);
.
var userModel = new LinvoDB('user', User, options)
.

.
userModel.findAsync({}).then(function(docs) {
// use docs somehow
}).catch(function(err) {
// handle errors
});