JS errors when loading Polymer Project starter toolbox set-up

Question

From Polymer Slack Group: @drjosh9000 posted:

I get a JS console full of errors when trying out https://www.polymer-project.org/1.0/start/toolbox/set-up. How can I eliminate them and get the page to load properly?

Edit

Note:

The following does not work:

polymer serve --open

The following does work:

polymer build
polymer serve build/bundled

Answer 1

Did you finish running bower install command? Polymer CLI does it for you automatically but have you stopped at one point?

Answer 2

I think you missed bower install as polymer.js is missing and causing other functions to fail.

Answer 3

I think Polymer package is missing. Try this:

open cmd
cd my-project # where my-project is the root directory of your project
bower install --save polymer/polymer