MongoDB pronlems for beginer

Yii 2.0
1

Hi guys!

I am a beginner developer and I have a some problem!
I need to use only mondodb as the main database. I tried many options.
But after executing the command yii migrate i always get the exceptions.

2

Please post these exceptions.

3

Exception ‘yii\base\InvalidConfigException’ with message ‘Failed to instantiate
component or class “db”.’

if i comment db section

Exception ‘yii\base\InvalidConfigException’ with message ‘“db” refers to a yii\mongodb\Connection component. yii\db\Connection is expected.’

if rename mongodb to db.

common\config\main-local.php

    return [
        'components' => [
            // 'db' => [
            //     'class' => 'yii\db\Connection',
            //     'dsn' => 'mysql:host=localhost;dbname=yii',
            //     'username' => 'root',
            //     'password' => '',
            //     'charset' => 'utf8',
            // ],
            'mongodb' => [
                'class' => '\yii\mongodb\Connection',
                'dsn' => 'mongodb://@localhost:27017/yii',
                'options' => [
                    'username' => '',
                    'password' => ''
                ]
            ],
            'mailer' => [
                'class' => 'yii\swiftmailer\Mailer',
                'viewPath' => '@common/mail',
                // send all mails to a file by default. You have to set
                // 'useFileTransport' to false and configure a transport
                // for the mailer to send real emails.
                'useFileTransport' => true,
            ],
        ],
    ];
4

Can you give a stacktrace for

Exception 'yii\base\InvalidConfigException' with 
message '"db" refers to a yii\mongodb\Connection
component. yii\db\Connection is expected.'

?

5

hei i have the same problem, here my stacktrace

Exception ‘yii\base\InvalidConfigException’ with message ‘“db” refers to a yii\mongodb\Connection component. yii\db\Connection is expected.’

in C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\di\Instance.php:152

Stack trace:
#0 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2-queue\src\drivers\db\Queue.php(61): yii\di\Instance::ensure(Object(yii\di\Instance), ‘yii\db\Connecti…’)
#1 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\base\BaseObject.php(109): yii\queue\db\Queue->init()
#2 [internal function]: yii\base\BaseObject->__construct(Array)
#3 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\di\Container.php(419): ReflectionClass->newInstanceArgs(Array)
#4 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\di\Container.php(170): yii\di\Container->build(‘yii\queue\db\Qu…’, Array, Array)
#5 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\BaseYii.php(365): yii\di\Container->get(‘yii\queue\db\Qu…’, Array, Array)
#6 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\di\ServiceLocator.php(137): yii\BaseYii::createObject(Array)
#7 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\base\Module.php(766): yii\di\ServiceLocator->get(‘queue’, true)
#8 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\base\Application.php(311): yii\base\Module->get(‘queue’)
#9 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\base\Application.php(271): yii\base\Application->bootstrap()
#10 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\console\Application.php(124): yii\base\Application->init()
#11 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\base\BaseObject.php(109): yii\console\Application->init()
#12 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\base\Application.php(204): yii\base\BaseObject->__construct(Array)
#13 C:\xampp\htdocs\veristoreTools2\vendor\yiisoft\yii2\console\Application.php(89): yii\base\Application->__construct(Array)
#14 C:\xampp\htdocs\veristoreTools2\yii(19): yii\console\Application->__construct(Array)
#15 {main}