I tried using https://www.npmjs.com/package/vue-c3 for rendering my c3 charts in vue. It worked some time ago, but now it started giving (in VueC3): “vue.runtime.esm.js?ff9b:587 [Vue warn]: Failed to mount component: template or render function not defined.” even when using a code from a tutorial: How can I fix this? Answer I faced the same exact problem. In my case it