Проблемы при установке стека MEAN

Я пытаюсь установить стек MEAN, используя следующий учебник:

http://www.bossable.com/303/install-mean-stack/#comment-1526

Я использую webstorm и MongoDB.

Однако я не увенчался успехом, и я продолжаю получать ошибки. Каждый раз, когда я подключаюсь к localhost: 3000, я получаю следующую ошибку:

   C:\meanproject>grunt
   Running "jshint:all" (jshint) task
   >> 55 files lint free.

   Running "csslint:all" (csslint) task
   >> 2 files lint free.

   Running "concurrent:default" (concurrent) task
   Running "nodemon:dev" (nodemon) task
   Running "watch" task
   Waiting...
   [nodemon] v1.2.1
   [nodemon] to restart at any time, enter 'rs'
    [nodemon] watching: app/views/**/*.* gruntfile.js server.js          config/**/*.js app/*
    */*.js
   [nodemon] starting 'node --debug server.js'
    Debugger listening on port 5858
   Application loaded using the "development" environment configuration
   { [Error: Cannot find module '../build/Release/bson']   code: 'MODULE_NOT_FOUND' }

  js-bson: Failed to load c++ bson extension, using pure JS version
  { [Error: Cannot find module '../build/Release/bson']  code: 'MODULE_NOT_FOUND' }

  js-bson: Failed to load c++ bson extension, using pure JS version
  MEAN.JS application started on port 3000
    C:\meanproject\node_modules\mongoose\node_modules\mongodb\lib\mongodb\connection
   \base.js:246
    throw message;
          ^
Error: Error setting TTL index on collection : sessions
at C:\meanproject\node_modules\connect-mongo\lib\connect-mongo.js:169:23
at C:\meanproject\node_modules\mongoose\node_modules\mongodb\lib\mongodb\db.
js:1499:46
at C:\meanproject\node_modules\mongoose\node_modules\mongodb\lib\mongodb\db.
js:1632:20
 at  C:\meanproject\node_modules\mongoose\node_modules\mongodb\lib\mongodb\cur
sor.js:170:22
 at  C:\meanproject\node_modules\mongoose\node_modules\mongodb\lib\mongodb\cur
    sor.js:714:39
    at Cursor.close   (C:\meanproject\node_modules\mongoose\node_modules\mongodb\l
 ib\mongodb\cursor.js:1009:5)
 at commandHandler (C:\meanproject\node_modules\mongoose\node_modules\mongodb
    \lib\mongodb\cursor.js:714:21)
    at C:\meanproject\node_modules\mongoose\node_modules\mongodb\lib\mongodb\db.
    js:1905:9
    at Server.Base._callHandler  (C:\meanproject\node_modules\mongoose\node_modul
   es\mongodb\lib\mongodb\connection\base.js:453:41)
   at   C:\meanproject\node_modules\mongoose\node_modules\mongodb\lib\mongodb\con
   nection\server.js:488:18
    at MongoReply.parseBody (C:\meanproject\node_modules\mongoose\node_modules\m
    ongodb\lib\mongodb\responses\mongo_reply.js:68:5)
     at null.<anonymous>  (C:\meanproject\node_modules\mongoose\node_modules\mongo
 db\lib\mongodb\connection\server.js:446:20)
at emit (events.js:107:17)
at null.<anonymous> (C:\meanproject\node_modules\mongoose\node_modules\mongo
db\lib\mongodb\connection\connection_pool.js:207:13)
at emit (events.js:110:17)
at Socket.<anonymous> (C:\meanproject\node_modules\mongoose\node_modules\mon
godb\lib\mongodb\connection\connection.js:440:22)
    [nodemon] app crashed - waiting for file changes before starting...

Как я могу это решить?