browserify is installed, but is not available in command line

Question

I install Browserify:

npm install -g browserify

then I try to run it:

$ browserify main.js > bundle.js

and Windows says

'browserify' is not recognized as an internal or external command

Why is that? The Browserify page promises it will work, but it does not.

Answer 1

I resolved this issue by

npm uninstall browserify --save
npm install browserify -g
npm install browserify-shim -- save