ReflectionException while trying to add Yii2 module - php

Question

I'm trying to add REST api to my existing classic Yii2 (advanced template) project. According to Creating a REST API for Yii2-basic-template
and RESTful API in Yii 2 Advanced Application Template I'm trying to achieve that by adding a new module to my existing app.
Here is my application structure now:
+ api
+ config
-main.php
+ modules
+ v1
+ controllers
-Module.php
-index.php
-.htaccess
+ backend
+ common
...
My api/config/main.php file:
<?php
$params = require(__DIR__ . '/../../backend/config/params.php');
return [
'id' => 'app-backend-api',
'basePath' => dirname(__DIR__) . '/..',
'bootstrap' => ['log'],
'modules' => [
'v1' => [
'class' => 'api\modules\v1\Module'
]
],
'components' => [
'request' => [
'parsers' => [
'application/json' => 'yii\web\JsonParser',
]
],
'urlManager' => [
'enablePrettyUrl' => true,
'enableStrictParsing' => true,
'showScriptName' => false,
'rules' => [
['class' => 'yii\rest\UrlRule', 'controller' => ['v1/goal']],
],
],
],
'params' => $params,
];
and my Module.php
<?php
namespace api\modules\v1;
class Module extends \yii\base\Module
{
public $controllerNamespace = 'api\modules\v1\controllers';
public function init()
{
parent::init();
}
}
The problem is that when I try to navigate to http://my-url/api/v1/goals I get the following error:
Invalid Configuration – yii\base\InvalidConfigException
Failed to instantiate component or class "api\modules\v1\Module".
Caused by: ReflectionException
Class api\modules\v1\Module does not exist
in C:\wamp64\www\agency\vendor\yiisoft\yii2\di\Container.php at line 453

Answer 1

Create file common/config/aliases.php:
Yii::setAlias('common', dirname(__DIR__));
Yii::setAlias('frontend', dirname(dirname(__DIR__)) . '/frontend');
Yii::setAlias('backend', dirname(dirname(__DIR__)) . '/backend');
Yii::setAlias('console', dirname(dirname(__DIR__)) . '/console');
Yii::setAlias('api', dirname(dirname(__DIR__)) . '/api');
Add this line to file api/web/index.php
require(__DIR__ . '/../../common/config/aliases.php');