LaravelにVue.jsを導入してオリジナルサービスを練習で作っているのですが、
bladeにapp.jsで登録しているComponentsが画面に表示されません。
Consoleのエラーをみると以下のように表示されているのですが、自己解決ができなかったので、質問させていただきます。
コードも伏せて載せておきますのでどうかよろしくお願いします。

エラー文

[Vue warn]: Unknown custom element: <card-list> - did you register the component correctly? For recursive components, make sure to provide the "name" option.

実際のコード

show.blade.php

PHP
1@extends('layouts.app')
2
3@section('header_menu')
4@parent
5
6<body class="{{$board->color}}">
7    @section('content')
8    <div id="app">
9        <card-list></card-list>
10    </div>
11    @endsection
12</body>
13

app.js

Javascript
1
2/**
3 * First we will load all of this project's JavaScript dependencies which
4 * includes Vue and other libraries. It is a great starting point when
5 * building robust, powerful web applications using Vue and Laravel.
6 */
7
8require('./bootstrap');
9
10window.Vue = require('vue');
11
12/**
13 * The following block of code may be used to automatically register your
14 * Vue components. It will recursively scan this directory for the Vue
15 * components and automatically register them with their "basename".
16 *
17 * Eg. ./components/ExampleComponent.vue -> <example-component></example-component>
18 */
19
20// const files = require.context('./', true, /.vue$/i)
21// files.keys().map(key => Vue.component(key.split('/').pop().split('.')[0], files(key).default))
22
23Vue.component('example-component', require('./components/ExampleComponent.vue').default);
24Vue.component('card-list', require('./components/CardList.vue').default);
25
26/**
27 * Next, we will create a fresh Vue application instance and attach it to
28 * the page. Then, you may begin adding components to this application
29 * or customize the JavaScript scaffolding to fit your unique needs.
30 */
31
32const app = new Vue({
33    el: '#app'
34});

CardList.vue

<template>
    <div class="container">
        <div class="row justify-content-center">
            <div class="col-md-8">
                <div class="card card-default">
                    <div class="card-header">Card-List</div>
                    <div class="card-body">
                        Card-List
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    export default {
        mounted() {
            console.log('Component mounted.')
        }
    }
</script>