Error running gulp

[maxxer]

Hi. Thank you very much for the blog post, very interesting!

I don't know if you still want to update it, but running gulp nowadays returns an error:

➜  pos-system-vuejs-blog git:(master) gulp
[05:57:25] Using gulpfile ~/work/pos-system-vuejs-blog/gulpfile.js
[05:57:25] Starting 'js'...
[05:57:25] Finished 'js' after 8.67 ms
[05:57:25] Starting 'default'...
[05:57:25] Finished 'default' after 18 μs
events.js:183
      throw er; // Unhandled 'error' event
      ^

Error: Cannot find module 'jQuery' from '/home/maxxer/work/pos-system-vuejs-blog/js'
    at /home/maxxer/work/pos-system-vuejs-blog/node_modules/browser-resolve/node_modules/resolve/lib/async.js:46:17
    at process (/home/maxxer/work/pos-system-vuejs-blog/node_modules/browser-resolve/node_modules/resolve/lib/async.js:173:43)
    at ondir (/home/maxxer/work/pos-system-vuejs-blog/node_modules/browser-resolve/node_modules/resolve/lib/async.js:188:17)
    at load (/home/maxxer/work/pos-system-vuejs-blog/node_modules/browser-resolve/node_modules/resolve/lib/async.js:69:43)
    at onex (/home/maxxer/work/pos-system-vuejs-blog/node_modules/browser-resolve/node_modules/resolve/lib/async.js:92:31)
    at /home/maxxer/work/pos-system-vuejs-blog/node_modules/browser-resolve/node_modules/resolve/lib/async.js:22:47
    at FSReqWrap.oncomplete (fs.js:152:21)