This happened to me while playing with Web Starter Toolkit (WST)

Problem

web_start_kit_hello npm install --global gulp && npm install

module.js:340 throw err; ^ Error: Cannot find module 'are-we-there-yet' at Function.Module._resolveFilename (module.js:338:15) at Function.Module._load (module.js:280:25) at Module.require (module.js:364:17) at require (module.js:380:17) at Object.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npmlog/log.js:2:16) at Module._compile (module.js:456:26) at Object.Module._extensions..js (module.js:474:10) at Module.load (module.js:356:32) at Function.Module._load (module.js:312:12) at Module.require (module.js:364:17)

Solution:

Go to the global node_modules directory (npm root -g if you don’t know)

$ cd /usr/local/lib/node_modules

curl -L https://www.npmjs.com/install.sh | sh