Express module not found when installed with NPM

Question

When I try to run the app.js file created by express, I get the following error:

$ node app.js

node.js:134
        throw e; // process.nextTick         


        

Answer 1

• Install express

  npm install -g express

• Create a new app

  express your_app

• cd into app directory

  cd your_app

• use npm link to resolve modules

  npm link express

Answer 2

What about NODE_PATH=/usr/local/lib/node_modules in .bashrc or .bash_profile? I think it's the real correct way.

Answer 3

Set NODE_PATH=NODE_HOME\node_modules.

I'm using windows 7 and it works fine.

Answer 4

Finally with Linux a good way to do is to use the command : sudo apt-get install node-express

But with express 4 we must use express-generator to make app skeleton, install it with 'npm install express-generator -g', and then run 'express myapp' command. see also install express

Answer 5

For all problems with express with a mac computer:

The solution is:

1. chown to your user the .npm folder :

   sudo chown -R Webmaste /Users/webmaste/.npm/
   

2. At your test folder or your folder:

   sudo npm install -g express@2.5.8
   

3. Invoke express from your actual location:

   /usr/local/share/npm/bin/express
   

4. sudo cd . && npm install

5. Finally:

   node app
   

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the final message in the console should look like this:

Express server listening on port 3000 in development mode

Answer 6

Use local installs for require(), and global installs for command-line apps.

If you need both, use the npm link command.