Most middleware (like favicon) is no longer bundled with Express

Error: Most middleware (like favicon) is no longer bundled with Express and must be installed separately. Please see https://github.com/senchalabs/connect#middleware.

Solution:

For Express 4 :
// Serve favicon.ico.

$> npm install serve-favicon

Then in your server .js script :
var favicon = require(‘serve-favicon’);
app.use(favicon(options.favicon));

For Express 3 :

This is likely the syntax that gave you the error above

app.use(express.favicon(options.favicon));