Promise has no method 'sort'

Question

I am using Mongoose with Bluebird and am hitting an Error when using a query that includes a sort on a time stamp. I am trying to retrieve only the most recent entry. The query works when using the built in Promises. Any ideas? Thanks! ``` var Promise = require("bluebird"), mongoose = require('mongoose'); var Item = Promise.promisifyAll(mongoose.model("Item")); Promise.promisifyAll(Item.prototype); var connect = function () { var options = { server: { socketOptions: { keepAlive: 1 } } }; var mongoUrl = "mongodb://" + config.mongo.host + ":" + config.mongo.port + "/" + config.mongo.db; mongoose.connect(mongoUrl, options); }; connect(); Item.findAsync({item_id: "03010200400000a0bf00210"}).sort({ts:-1}).limit(1); ``` ``` Possibly unhandled TypeError: Object [object Promise] has no method 'sort' at Object.module.exports.process (/Source/updater2/checkAndUpdate.js:88:75) at /Source/tellme/updater2/test1.js:25:20 at tryCatch1 (/Source/updater2/node_modules/bluebird/js/main/util.js:43:21) at…

Accepted Answer

Try this

```
return Item.find({item_id: "03010200400000a0bf00210"}).sort({ts:-1}).limit(1).execAsync();
```

Promise has no method 'sort'

Solution

Problem