Vue Router router-view error - vue.js

Question

I'm getting the following error when trying to implement vue-router.
Unknown custom element: <router-view> - did you register the component correctly? For recursive components, make sure to provide the "name" option.
Where do I need to provide the name option?
A lot of the tutorials I'm looking at seem to be an older version of vue-router. I follow the set-up process but can't get it to work.
Might there be something special I have to do when using the webpack cli template?
I'm also using the vue-router cdn.
Here's my main.js
import Vue from 'vue'
import App from './App'
import ResourceInfo from '../src/components/ResourceInfo'
var db = firebase.database();
var auth = firebase.auth();
const routes = [
{ path: '/', component: App },
{ path: '/info', component: ResourceInfo }
]
const router = new VueRouter({
routes
})
/* eslint-disable no-new */
var vm = new Vue({
el: '#app',
components: { App },
created: function() {
firebase.auth().onAuthStateChanged(function(user) {
if (user) {
// Get info for currently signed in user.
console.log(user);
vm.currentUser = user;
console.log(vm.currentUser);
} else {
// No user is signed in.
}
})
// Import firebase data
var quizzesRef = db.ref('quizzes');
quizzesRef.on('value', function(snapshot) {
vm.quizzes = snapshot.val();
console.log(vm.quizzes);
})
var resourcesRef = db.ref('resources');
resourcesRef.on('value', function(snapshot) {
vm.resources.push(snapshot.val());
console.log(vm.resources);
})
var usersRef = db.ref('users');
usersRef.on('value', function(snapshot) {
vm.users = snapshot.val();
console.log(vm.users);
})
},
firebase: {
quizzes: {
source: db.ref('quizzes'),
asObject: true
},
users: {
source: db.ref('users'),
asObject: true
},
resources: db.ref('resources')
},
data: function() {
return {
users: {},
currentUser: {},
quizzes: {},
resources: []
}
},
router,
render: h => h(App)
})
And my App.vue
<template>
<div id="app">
<navbar></navbar>
<resource-info :current-user="currentUser"></resource-info>
<router-view></router-view>
</div>
</template>
<script>
import Navbar from './components/Navbar'
import ResourceInfo from './components/ResourceInfo'
export default {
name: 'app',
props: ['current-user'],
components: {
Navbar,
ResourceInfo
}
}
</script>
<style>
</style>

Answer 1

In your main.js file, you need to import VueRouter as follows:
import Vue from "vue" // you are doing this already
import VueRouter from "vue-router" // this needs to be done
And below that, you need to initialize the router module as follows:
// Initialize router module
Vue.use(VueRouter)
Other than the above, I cannot find anything else missing in your code, it seems fine to me.
Please refer to the installation page in docs, under NPM section:
http://router.vuejs.org/en/installation.html

Answer 2

First install vue router by using "npm install vue-route" and follow the bellow in main.js
import Vue from 'vue'
import Router from 'vue-router'
import App from './App'
import ResourceInfo from '../src/components/ResourceInfo'
var db = firebase.database();
var auth = firebase.auth();
Vue.use(Router)
var router = new Router({
hashbang: false,
history: true,
linkActiveClass: 'active',
mode: 'html5'
})
router.map({
'/': {
name: 'app',
component: App
},
'/info': {
name: 'resourceInfo',
component: ResourceInfo
}
})
// If no route is matched redirect home
router.redirect({
'*': '/'
});
// Start up our app
router.start(App, '#app')
This might be solve your problem

Answer 3

You forgot to import vue-router and initialize VueRouter in main.js
import VueRouter from "vue-router"
Vue.use(VueRouter)