Getting error, Error: Cannot find module ‘express’ after npm install

Question

I am new to both Node JS and express, and I have just installed npm in Windows 7.

I have installed express using the global flag:

npm install -g expr         


        

Answer 1

I had this problem, Seems though we use -g it's ignored.

I just copied contents of MyProject/source/vendor to C:\Users\username\AppData\Roaming\npm

Copy only needed folders inside node_modules (like: express, express-generator, bower, yo, gulp and packages that should be in PATH).

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This problem really bothers everyone (or windows users?), npm programmers should solve it!