Node.js Error: Cannot find module express

Question

I wrote my first node.js app, but it can\'t find express library:

C:\\ChatServer\\Server>node server.js

module.js:340
    throw err;
          ^
Error: C         


        

Answer 1

Golo have explain well the solution, but I might add a clarification:
sometimes node modules are installed in

/usr/local/lib/node_modules

and when you launch node blabla.js modules are searched in

/lib

So a solution is to create a symbolic link:

sudo ln -s /usr/local/lib/node_modules/ /lib/node_modules