New Twiddle

components.1-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

components.2-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

components.3-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

components.4-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

components.5-component.js

import Ember from 'ember';

export default Ember.Component.extend({
});

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

controllers.main.js

import Ember from 'ember';

export default Ember.Controller.extend({
  text: 'initial text',
  
  actions: {
    setName() {
      this.set('text', name);
    }
  }
});

router.js

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('main', { path: '/' });
});

export default Router;

styles.app.css

.main-route {
  border: 1px solid red;
  margin: 10px;
  padding: 10px;
}

.first-component {
  border: 1px solid orange;
  margin: 10px;
  padding: 10px;
}

.second-component {
  border: 1px solid gray; 
  margin: 10px;
  padding: 10px;
}

.third-component {
  border: 1px solid blue;
  margin: 10px;
  padding: 10px;
}

.fourth-component {
  border: 1px solid green;
  margin: 10px;
  padding: 10px;
}

.fifth-component {
  border: 1px solid violet;
  margin: 10px;
  padding: 10px;
}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

templates.components.1-component.hbs

<div class="first-component">
  yellow first component
  {{2-component}}
</div>

templates.components.2-component.hbs

<div class="second-component">
  gray second component
  {{3-component}}
</div>

templates.components.3-component.hbs

<div class="third-component">
  blue third component
  {{4-component}}
 </div>

templates.components.4-component.hbs

<div class="fourth-component">
  green fourth component
  {{5-component}}
</div>

templates.components.5-component.hbs

<div class="fifth-component">
  violet fifth component
  <br>
  <button>button in fifth component</button>
 </div>

templates.main.hbs

<div class="main-route">
  red main-route-template
  {{1-component}}
  <br>
  {{text}}
 </div>

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}