express command not found in bash after installing it with npm

Question

just installed new ubuntu vm to test around with node installed things in this order:

node
mongodb-server
npm
express
mongoose

now, trying

Answer 1

I had to do a combination of things:

1. From node.js modules path:

   echo 'export NODE_PATH="'$(npm root -g)'"' >> ~/.bash_profile && . ~/.bash_profile
   

   This sets the file path in bash profile (can be viewed using nano .bash_profile

2. Slightly modified from Raynos (above) since I needed sudo:

   sudo npm install express -g
   

3. Slightly modified from Fazi (above) since I needed sudo:

   sudo npm install -g express-generator
   

TEST YOUR APPLICATION:

run `DEBUG=myapp:* npm start`

Ref: http://expressjs.com/en/starter/generator.html

Answer 2

With the release of Express 4.0.0 it looks like you need to do sudo npm install -g express-generator.

Answer 3

I had this problem and was installing node via Homebrew. The problem was being caused by Homebrew.

So I did:

brew uninstall node

and then installed node using the installer on the nodejs.org site.

Then I ran:

npm install -g express

And voila no problems.

Answer 4

IF you are running windows:

export NODE_PATH="C:\Users\IMarek\AppData\Roaming\npm\node_modules"

Answer 5

Starting from express 4.00 you also need to install express generator with:

npm install -g express-generator

Only after this will you be able to run express as a command!

For confirmation see: ExpressJS.com - Migrating to Express 4

Answer 6

npm install express -g

You need to install it globally.

Npm 1.0 installs modules locally by default. So the bash executable lives in /node_modules/bin/. You can add that folder to PATH or you can just install express globally so that it's picked up by PATH