Make test-dev fails

Running 'make test-dev' gives the following output:

vagrant@mockup-generator:/vagrant$ make test-dev
NODE_PATH=./node_modules ./node_modules/grunt-cli/bin/grunt test_dev --pattern=
Running "karma:testDev" (karma) task
WARN [reporter]: Can not load "coverage", it is not registered!
Perhaps you are missing some plugin?
INFO [karma]: Karma v0.12.24 server started at http://localhost:9876/
INFO [launcher]: Starting browser Chrome
WARN [watcher]: Pattern "/vagrant/js/config.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/expect/index.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/plone-mockup/js/docsapp.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/plone-mockup/js/iframe.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/plone-mockup/js/iframe_init.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/plone-mockup/patterns/structure.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/plone-mockup/patterns/filemanager.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/plone-mockup/patterns/thememapper.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/plone-mockup/patterns/tinymce.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/plone-mockup/patterns/upload.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/plone-mockup/js/ui.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/bower_components/sinonjs/sinon.js" does not match any file.
WARN [watcher]: Pattern "/vagrant/patterns/*_/_" does not match any file.
WARN [preprocess]: Can not load "coverage", it is not registered!
Perhaps you are missing some plugin?
ERROR [launcher]: Cannot start Chrome
Can not find the binary google-chrome
Please set env variable CHROME_BIN

Start by running `make test-dev` and inspect the Karma output, especially the Chrome launcher error and the CHROME_BIN requirement. Done means the test command can start Chrome and proceed past the launcher failure without the reported missing-binary error.

Written by the indexing model from the issue text.