I have a fresh deployment of V10. All dependencies were installed first and properly. The database selector/manager isn't affected and renders fine. As soon as I click a database and go to the login screen I get this error:

2017-06-06 14:53:03,919 15369 ERROR triangle.intranet odoo.addons.base.ir.ir_qweb.assetsbundle: Could not execute command 'lessc'

That's the only error I get in my logfile. Everything else is just INFO with 404s on the .less.css files. It doesn't matter if I create a new db or install blog/website to compile less. This error doesn't go away. 404s on everything on the backend.