Error: Cannot find module 'dateformat' in gulp
Had a similar issue and reinstalling gulp globally indeed fixed the issue, however, see my details regarding prior installations of node (since you mention it as well)
npm uninstall gulp -gnpm install gulp -gThe explanation is difficult to precisely offer, since I embarked on an entire troubleshooting effort, but if it is of any help - I suspect the issue is a result of installing node, but the installer is not overwriting prior versions of npm - somehow causing an internal issue somewhere. Troubleshooting flow:
- uninstall node
- delete the
nodejsfolder, located by default at ~\Program Files\ (orphaned node_modules with npm folder found here) - reinstall node
- globally uninstall/reinstall gulp
Some more details on the issue can be found here: npm 3 broken when installed from official OS X Node.js installer #10434. While this is specific to OSX, I found the situation identical to myself on the Windows side.