Yii 2: Unable to find a class into the extension 'yii2-admin' - php

Question

Extension's Github project: https://github.com/mdmsoft/yii2-admin
I'm using the advanced template of yii2, so I've backend, frontend and common folders all into an advanced folder.
the advanced folder itself is on the same level of vendor folder.
I've others extensions and all is working
Then I installed yii2-admin by composer
php composer.phar require mdmsoft/yii2-admin "*"
Installation worked well.
Into vendor folder I've now mdmsoft folder with yii2-admin subfolder into it.
This is the actual content of vendor/yiisoft/extensions.php (modified by composer installation, I haven't manually touched it)
<?php
$vendorDir = dirname(__DIR__);
return array (
'yiisoft/yii2-jui' =>
array (
'name' => 'yiisoft/yii2-jui',
'version' => '2.0.0.0',
'alias' =>
array (
'#yii/jui' => $vendorDir . '/yiisoft/yii2-jui',
),
),
'mdmsoft/yii2-admin' =>
array (
'name' => 'mdmsoft/yii2-admin',
'version' => '1.0.2.0',
'alias' =>
array (
'#mdm/admin' => $vendorDir . '/mdmsoft/yii2-admin',
),
),
);
I added this configurations to common/config/main.php
<?php
return [
...
'components' => [
...
'authManager' => [
'class' => 'yii\rbac\DbManager', // or use 'yii\rbac\PhpManager'
],
],
];
And these configs adedd to backend/config/main.php
'modules' => [
'admin' => [
'class' => 'mdm\admin\Module',
]
],
'components' => [
'as access' => [
'class' => 'mdm\admin\components\AccessControl',
'allowActions' => [
'admin/*', // add or remove allowed actions to this list
]
],
],
(I omitted useless code in every code block)
I also have enabled pretty url. And it was working.
Complete error stack
2014-11-06 17:05:49 [127.0.0.1][-][-][error][ReflectionException] exception 'ReflectionException' with message 'Class mdm\admin\Module does not exist' in C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\di\Container.php:408
Stack trace:
#0 C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\di\Container.php(408): ReflectionClass->__construct('mdm\\admin\\Modul...')
#1 C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\di\Container.php(354): yii\di\Container->getDependencies('mdm\\admin\\Modul...')
#2 C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\di\Container.php(147): yii\di\Container->build('mdm\\admin\\Modul...', Array, Array)
#3 C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\BaseYii.php(344): yii\di\Container->get('mdm\\admin\\Modul...', Array, Array)
#4 C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\base\Module.php(354): yii\BaseYii::createObject(Array, Array)
#5 C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\base\Module.php(511): yii\base\Module->getModule('admin')
#6 C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\base\Module.php(449): yii\base\Module->createController('admin/route')
#7 C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\web\Application.php(83): yii\base\Module->runAction('admin/route', Array)
#8 C:\xampp\htdocs\advanced\vendor\yiisoft\yii2\base\Application.php(375): yii\web\Application->handleRequest(Object(yii\web\Request))
#9 C:\xampp\htdocs\advanced\backend\web\index.php(18): yii\base\Application->run()
#10 {main}
The problem
If I open my backend at /admin I got this exception
ReflectionException Class mdm\admin\Module does not exist
It's my first Yii2 app, so I've no idea of what's the problem and how to debug it.
Edit 1
I checked C:\xampp\htdocs\vendor\mdmsoft\yii2-admin\Module.php and in its content there is the Module class definition
class Module extends \yii\base\Module
EDIT 2
My first error is that asAccess was put into components array. But It must be outside of it, at the same level
Now the error is changed:
Class mdm\admin\components\AccessControl does not exist

Answer 1

First: this is wrong
'components' => [
'cache' => [
'class' => 'yii\caching\FileCache',
],
'as access' => [
'class' => 'mdm\admin\components\AccessControl',
'allowActions' => [
// 'admin/*', // add or remove allowed actions to this list
]
],
],
It must be as here:
'components' => [
'cache' => [
'class' => 'yii\caching\FileCache',
],
],
'as access' => [
'class' => 'mdm\admin\components\AccessControl',
'allowActions' => [
// 'admin/*', // add or remove allowed actions to this list
]
],
Second: you must run this command
php composer.phar require mdmsoft/yii2-admin "*"
from within the app root (htdocs\advanced), NOT from where you have executed the installation of yii (you were into htdocs). Only in this way to install yii2-admin into your app
Third: it's not true that console has not authManager ! if you have to use rbac, to simply do the default yii2 migration you must have it configured into console app. So my suggestione is: configure authManager into console, and other things into frontend and or backend where you need it
Fourth: you cannot admin frontend route from backend, so you need to enable this module even into frontend

Answer 2

"I added this configurations to common/config/main.php"
NOTE: !! Dont put at common, put in frontend or backend... console application has no user component and dont need access control.
Try adding this in backend/config/main right before 'modules'
'vendorPath' => dirname(dirname(__DIR__)) . '/vendor',
'extensions' => require(__DIR__ . '/../../vendor/yiisoft/extensions.php'),
'components' => [
'cache' => [
'class' => 'yii\caching\FileCache',
],
'authManager' => [
'class' => 'yii\rbac\DbManager',
],
],
and I can't but assume that the whole thing has return in front, so the whole code is like:
return [
'vendorPath' => dirname(dirname(__DIR__)) . '/vendor',
'extensions' => require(__DIR__ . '/../../vendor/yiisoft/extensions.php'),
'components' => [
'cache' => [
'class' => 'yii\caching\FileCache',
],
'authManager' => [
'class' => 'yii\rbac\DbManager',
],
],
'modules'=>[
'admin' => [
'class' => 'mdm\admin\Module',
],
],
'as access' => [
'class' => 'mdm\admin\components\AccessControl',
'allowActions' => [
'admin/*',
],
],
];
Hope this helps :D