laravel 5.3.10 + Vue.js 2.0.1で Failed to mount component のエラー

###前提・実現したいこと
Laravel + Vue.js にて開発を行っています。
LaravelのBladeテンプレートにVueのコンポーネントを展開していきたいのですが、
下記のエラーが表示され、うまく動作がされません。
※検証のため.vueのコンポーネントは最小限の記載しかしておりません。

###発生している問題・エラーメッセージ

[Vue warn]: Failed to mount component: template or render function not defined. (found in anonymous component - use the "name" option for better debugging messages.)

###該当のソースコード

index.blade.php
1<!DOCTYPE html>
2<html>
3<head>
4<meta charset="utf-8">
5<title></title>
6</head>
7<body>
8  <div id="app"></div>
9<script src="js/bundle.js"></script>
10</body>
11</html>

// app.js
import Vue from 'vue'
import InputText from './components/InputText.vue'

new Vue({
    render(h) {
      return h(InputText)
    }
}).$mount('#app')

// InputText.vue
<template>
    <input class="input-text" type="text">
</template>

<script>
export default {
}
</script>

<style lang="sass" scoped>
</style>

js
1// gulpfile.js
2const elixir = require('laravel-elixir');
3require('laravel-elixir-vue-2');
4
5elixir(mix => {
6    mix.sass('**/*.scss')
7       .webpack('')
8});

// webpack.config.js
const webpack = require('webpack');

module.exports = {
  entry: {
    bundle: './resources/assets/js/app.js',
  },
  output: {
    filename: '[name].js',
  },
  resolve: {
    root: __dirname,
    extensions: ['', '.js', '.vue'],
    modulesDirectories: ['node_modules'],
    alias: {
      vue: 'vue/dist/vue.js',
    },
  },
  module: {
    loaders: [
      {
        test: /\.vue?$/,
        loader: 'vue-loader',
      },
      {
        test: /\.js$/,
        loader: 'babel',
        exclude: /node_modules/,
      },
      {
        test: /\.html$/,
        loader: 'vue-html',
      },
      {
        test: /\.(jpg|png)$/,
        loader: 'url-loader?limit=10000',
      },
    ],
  },
  vue: {
    loaders: {
      scss: 'style!css!sass',
    },
  },
};

#package.json
{
  "private": true,
  "scripts": {
    "prod": "gulp --production",
    "dev": "gulp watch",
    "test": "karma start"
  },
  "dependencies": {
    "babel-core": "^6.17.0",
    "babel-runtime": "^6.11.6",
    "vue": "^2.0.1",
    "vue-resource": "^1.0.3",
    "vuex": "^2.0.0"
  },
  "devDependencies": {
    "babel-loader": "^6.2.5",
    "babel-plugin-transform-runtime": "^6.15.0",
    "babel-preset-es2015": "^6.16.0",
    "babel-preset-stage-3": "^6.17.0",
    "css-loader": "^0.25.0",
    "eslint": "^3.7.1",
    "eslint-config-airbnb": "^12.0.0",
    "eslint-config-vue": "^1.1.0",
    "eslint-plugin-import": "^2.0.0",
    "eslint-plugin-vue": "^0.1.1",
    "gulp": "^3.9.1",
    "jasmine": "^2.5.2",
    "jquery": "^3.1.1",
    "karma": "^1.3.0",
    "karma-cli": "^1.0.1",
    "karma-jasmine": "^1.0.2",
    "karma-phantomjs-launcher": "^1.0.2",
    "karma-sourcemap-loader": "^0.3.7",
    "karma-webpack": "^1.8.0",
    "laravel-elixir": "^6.0.0-11",
    "laravel-elixir-browsersync-official": "^1.0.0",
    "laravel-elixir-vue-2": "^0.2.0",
    "laravel-elixir-webpack-official": "^1.0.6",
    "phantomjs": "^2.1.7",
    "sass-loader": "^4.0.2",
    "style-loader": "^0.13.1",
    "url-loader": "^0.5.7",
    "vue-hot-reload-api": "^2.0.6",
    "vue-html-loader": "^1.2.3",
    "vue-loader": "^9.5.1",
    "vue-resource": "^1.0.3",
    "vue-style-loader": "^1.0.0",
    "webpack": "^1.13.2"
  }
}

###試したこと
下記の記事を参考にもろもろ試してみました。

http://qiita.com/tmiame/items/34823b22cd3829321120
https://github.com/vuejs/vue-loader/issues/287

###補足情報(言語/FW/ツール等のバージョンなど)
Laravel 5.3.10
Node.js 6.4.0
npm 3.9.3