created modules

backend/modules/business/Module.php

+<?php
+
+namespace backend\modules\business;
+
+/**
+ * business module definition class
+ */
+class Module extends \yii\base\Module
+{
+    /**
+     * @inheritdoc
+     */
+    public $controllerNamespace = 'backend\modules\business\controllers';
+
+    /**
+     * @inheritdoc
+     */
+    public function init()
+    {
+        parent::init();
+
+        // custom initialization code goes here
+    }
+}

backend/modules/business/controllers/DefaultController.php

+<?php
+
+namespace backend\modules\business\controllers;
+
+use yii\web\Controller;
+
+/**
+ * Default controller for the `business` module
+ */
+class DefaultController extends Controller
+{
+    /**
+     * Renders the index view for the module
+     * @return string
+     */
+    public function actionIndex()
+    {
+        return $this->render('index');
+    }
+}

backend/modules/business/views/default/index.php

+<div class="business-default-index">
+    <h1><?= $this->context->action->uniqueId ?></h1>
+    <p>
+        This is the view content for action "<?= $this->context->action->id ?>".
+        The action belongs to the controller "<?= get_class($this->context) ?>"
+        in the "<?= $this->context->module->id ?>" module.
+    </p>
+    <p>
+        You may customize this page by editing the following file:<br>
+        <code><?= __FILE__ ?></code>
+    </p>
+</div>

backend/modules/location/Module.php

+<?php
+
+namespace backend\modules\location;
+
+/**
+ * location module definition class
+ */
+class Module extends \yii\base\Module
+{
+    /**
+     * @inheritdoc
+     */
+    public $controllerNamespace = 'backend\modules\location\controllers';
+
+    /**
+     * @inheritdoc
+     */
+    public function init()
+    {
+        parent::init();
+
+        // custom initialization code goes here
+    }
+}

backend/modules/location/controllers/DefaultController.php

+<?php
+
+namespace backend\modules\location\controllers;
+
+use yii\web\Controller;
+
+/**
+ * Default controller for the `location` module
+ */
+class DefaultController extends Controller
+{
+    /**
+     * Renders the index view for the module
+     * @return string
+     */
+    public function actionIndex()
+    {
+        return $this->render('index');
+    }
+}

backend/modules/location/views/default/index.php

+<div class="location-default-index">
+    <h1><?= $this->context->action->uniqueId ?></h1>
+    <p>
+        This is the view content for action "<?= $this->context->action->id ?>".
+        The action belongs to the controller "<?= get_class($this->context) ?>"
+        in the "<?= $this->context->module->id ?>" module.
+    </p>
+    <p>
+        You may customize this page by editing the following file:<br>
+        <code><?= __FILE__ ?></code>
+    </p>
+</div>