title: nuxt router-module render function or template not defined in component: anonymous
body: <p>when i remove '@nuxtjs/router' from build modules in nuxt.config.js file, the error will solve.</p>
  <p>Reproduction link
  <a href="https://github.com/mahdikmg/nuxt-router-module-bug" rel="nofollow noreferrer">https://github.com/mahdikmg/nuxt-router-module-bug</a></p>
  <p>just install dependencies, run the project and open it in your browser.</p>
  <p><img src="https://cmty.s3.eu-west-1.amazonaws.com/102731799/0a8e49c0-fcec-11ea-aced-6fdcb305d26b.png" alt="bug" /></p>
  <p>any idea?</p>