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

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