I fixed this in a couple ways.
It is the Core Admin theme from Wrapbootstrap and it comes with a Bootstrap 3.0 and a Bootstrap 2.0 version.
I switched to the Bootstrap 2.0 version then deleted the gemlock file and re-ran bundle install
- After this the file worked just fine on "localhost:8886/pages/dashboard/dashboard.html" Note that my Vagrant VM is pointing to port 8886