Followed by this warning:

UNMET PEER DEPENDENCY jshint@2.x
gulp-jshint@2.0.0 requires a peer of jshint@2.x but none was installed.

Cannot find module ‘jshint/src/cli’

The gulp-jshint installation instructions show that we need jshint AND gulp-jshint in our package.json:
npm install jshint --save-dev