Building a Router throws an error [TypeError: Cannot read property 'Kerberos' of undefined]. How to decide?

Question

Node.js

Good time of the day. i created the application using express test -e, zates created a file in the routes api.js directory with the content

var express = require('express');
var router = express.Router();

// start route

router.route('/devices')
 
 
  .post(function(req, res) {
    
    var device = new Device();
    device.uuid = req.body.uuid;
    device.location.coordinates = req.body.location.coordinates;
    device.type = req.body.type;
    device.save(function(err) {
      if (err)
        res.send(err);
 
      res.json({ message: 'Device created!' });
    });
 
    
  })
 
  .get(function(req, res) {
    Device.find(function(err, devices) {
      if (err)
        res.send(err);
 
      res.json(devices);
    });
  });
 
router.route('/devices/:device_id')
 
  .get(function(req, res) {
    Device.findById(req.params.device_id, function(err, device) {
      if (err)
        res.send(err);
      res.json(device);
    });
  })
 
  .put(function(req, res) {
    Device.findById(req.params.device_id, function(err, device) {
 
      if (err)
        res.send(err);
 
      device.uuid = req.body.uuid;
      device.save(function(err) {
        if (err)
          res.send(err);
 
        res.json({ message: 'Device updated!' });
      });
 
    });
  })
 
  .delete(function(req, res) {
    Device.remove({
      _id: req.params.device_id
    }, function(err, device) {
      if (err)
        res.send(err);
 
      res.json({ message: 'Successfully deleted' });
    });
  });

// end

module.exports = router;

registered in the app.js file

var api = require('./routes/api');

var mongoose   = require('mongoose');
mongoose.connect('mongodb://[email protected]:27017/monitor');
var Device     = require('./models/device');

app.use('/api', api);

in response I get: [TypeError: Cannot read property 'Kerberos' of undefined]
I ask for help in which direction to drip. Thanks in advance

Answer 1

I have the same error, but it does not entail any consequences for me and the code works out. Node-inspector showed that it originates somewhere in the core of the mongodb driver used by mongoose. Accordingly, when we connect mongoose, then it pops up.
Here's what's in the driver readme:

## Troubleshooting
The MongoDB driver depends on several other packages. These are.
* mongodb-core
* bson
* kerberos
* node-gyp
The `kerberos` package is a C++ extension that requires a build environment to be installed on your system. You must be able to build node.js itself to be able to compile and install the `kerberos` module. Furthermore, the `kerberos` module requires the MIT Kerberos package to correctly compile on UNIX operating systems. Consult your UNIX operation system package manager what libraries to install.
{{% note class="important" %}}
Windows already contains the SSPI API used for Kerberos authentication. However you will need to install a full compiler tool chain using visual studio C++ to correctly install the kerberos extension.
{{% /note %}}

Also in the latest driver update in the list of updates there is an entry:

1.3.1 2016-02-05
----------------
- Removed annoying missing Kerberos error (NODE-654).

Here's the link to the error: /NODE-654
So I think it's worth just updating the driver and the error will disappear.

Answer 2

I wonder why there is such a difference between creating the base through the express generator and when you write everything with pens :)