To run VueJS code in the Rails application, we need to install Webpack which is a static module bundler. The problem is that Babel does not have the correct preset to understand the JSX syntax with VueJS. If you restart the Webpack server and reload the page, you should see your first component. Vuex is a VueJS library that enables us to share the state of the application between all the Vue instances and components that use it. Vuex resolves this problem centralizing the application data.
You can read more here: https://nebulab.it/blog/build-rails-application-vuejs-using-jsx/
Besides if you do have any questions give me a call: https://clarity.fm/joy-brotonath