After upgrading to Spark 4 and Laravel 5.4 Can no longer render views

I'm not sure if this is a vue.js issue or spark or even laravel 5.4 but I branched my repository, upgraded to laravel 5.4 from the guide and then upgraded spark. I upgraded to mix and ran npm run dev and everything was fine but when I go to load the spark login page, the view doesn't actually render. I can see all of the source code when I view source but it never actually displays.

Anyone have any suggestions?