Mongo DB - Cannot find module 'express'

Mongo DB - Cannot find module 'express'


Tell us what’s happening:
When trying to go through the mongoDB challenges, this error in Glitch prevents me from running the code:

Error: Cannot find module ‘express’

at Function.Module._resolveFilename (module.js:547:15)

at Function.Module._load (module.js:474:25)

at Module.require (module.js:596:17)

at require (internal/module.js:11:18)

at Object. (/app/server.js:6:15)

at Module._compile (module.js:652:30)

at Object.Module._extensions..js (module.js:663:10)

at Module.load (module.js:565:32)

at tryModuleLoad (module.js:505:12)

at Function.Module._load (module.js:497:3)

Your code so far

  "name": "fcc-mongo-mongoose-challenges",
  "version": "0.0.1",
  "description": "A boilerplate project",
  "main": "server.js",
  "scripts": {
    "start": "node server.js"
  "dependencies": {
    "express": "^4.16.3",
    "body-parser": "^1.18.3",
    "mongodb": "^3.4.13",
    "mongoose": "^5.2.9"
  "engines": {
    "node": "4.4.5"
  "repository": {
    "type": "git",
    "url": "!/project/welcome-project"
  "keywords": [
  "license": "MIT"

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36.

Link to the challenge:


Could you post a link to your Glitch project here?


my guess is you forgot to import it

usually its something like require('express') at the top of your code



I’m having the same issue. Seems like from looking at his code he found a way to fix it but I have basically the same thing and I’m still getting the error. I did require(“express”).