Mage laravel website eka MongoDb cluster ekka connect kranna giyama me error eka enava.
laravel version eka 6 mage.

code eka config my conf/database.php vala

'mongodb_conn' => [
    'driver' => 'mongodb',
    'dsn'=>'mongodb+srv://myusername:mypassword@mydbname-ktp6o.mongodb.net/test?retryWrites=true&w=majority',
    'database' => 'mydbname',
],

.env eke code eka

 APP_NAME=My_laravel_web
APP_ENV=local
APP_KEY=base64:jtvoXduyfwnIB6A5pCy8Cfa9bJYRvNgMKeRFdfiYYyc=
APP_DEBUG=true
APP_URL=http://localhost

LOG_CHANNEL=stack

DB_CONNECTION=mongodb_conn'
DB_HOST=xxxx-shard-00-00-uggj0.mongodb.net
DB_PORT=27017
DB_DATABASE=mydbname
DB_USERNAME=myusername
DB_PASSWORD=mypassword

BROADCAST_DRIVER=log
CACHE_DRIVER=file
QUEUE_CONNECTION=sync
SESSION_DRIVER=file
SESSION_LIFETIME=120

REDIS_HOST=127.0.0.1
REDIS_PASSWORD=null
REDIS_PORT=6379

meka fix karanne kohomada

error message eka

 php artisan serve

   InvalidArgumentException  : Database [mongodb_conn'] not configured.

  at C:\xampp\htdocs\bloodDonation\vendor\laravel\framework\src\Illuminate\Database\DatabaseManager.php:152
    148|         // If the configuration doesn't exist, we'll throw an exception and bail.
    149|         $connections = $this->app['config']['database.connections'];
    151|         if (is_null($config = Arr::get($connections, $name))) {
  > 152|             throw new InvalidArgumentException("Database [{$name}] not configured.");
    153|         }
    154| 
    155|         return (new ConfigurationUrlParser)
    156|                     ->parseConfiguration($config);

  Exception trace:

  1   Illuminate\Database\DatabaseManager::configuration("mongodb_conn'")
      C:\xampp\htdocs\bloodDonation\vendor\laravel\framework\src\Illuminate\Database\DatabaseManager.php:115

  2   Illuminate\Database\DatabaseManager::makeConnection("mongodb_conn'")
      C:\xampp\htdocs\bloodDonation\vendor\laravel\framework\src\Illuminate\Database\DatabaseManager.php:86

  Please use the argument -v to see more details.