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

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