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这是一个创建于 3400 天前的主题，其中的信息可能已经有所发展或是发生改变。

我将测试环境的代码迁移到线上环境上来，然后就手动的配置下.env 。但是饱了这个莫名秒的错误。
我的.env 配置如下：
APP_ENV=local
APP_DEBUG=true
APP_KEY=3enKXjXbYW4O3OklteV4El31KXs0avK8

APP_TIMEZONE=PRC

APP_LOCALE=en
APP_FALLBACK_LOCALE=en

DB_CONNECTION=mysql
DB_HOST=10.137.208.14
DB_PORT=3306
DB_DATABASE=mkacall
DB_USERNAME=admin
DB_PASSWORD=cLuj0Ye9bl
DB_TIMEZONE=+08:00

CACHE_DRIVER=file
SESSION_DRIVER=file
QUEUE_DRIVER=database

MAIL_DRIVER=smtp

MAIL_HOST=mailtrap.io

MAIL_PORT=2525

MAIL_USERNAME=null

MAIL_PASSWORD=null

MAIL_FROM_ADDRESS=null

MAIL_FROM_NAME=null

错误如下：
InvalidArgumentException in DatabaseManager.php line 238:
Database [] not configured.

in DatabaseManager.php line 238
at DatabaseManager->getConfig (null ) in DatabaseManager.php line 157
at DatabaseManager->makeConnection (null ) in DatabaseManager.php line 67
at DatabaseManager->connection (null ) in Model.php line 3152
at Model::resolveConnection (null ) in Model.php line 3118
at Model->getConnection () in Model.php line 1866
at Model->newBaseQueryBuilder () in Model.php line 1809
at Model->newQueryWithoutScopes () in Model.php line 1783
at Model->newQuery () in Model.php line 3364
at Model->call ('whereRaw', array (' email = ? AND password = ? ', array ('[email protected]', 'e10adc3949ba59abbe56e057f20f883e')))
at AdminUser->whereRaw (' email = ? AND password = ? ', array ('[email protected]', 'e10adc3949ba59abbe56e057f20f883e'))
at call_user_func_array (array (object (AdminUser ), 'whereRaw'), array (' email = ? AND password = ? ', array ('[email protected]', 'e10adc3949ba59abbe56e057f20f883e'))) in Model.php line 3380
at Model::callStatic ('whereRaw', array (' email = ? AND password = ? ', array ('[email protected]', 'e10adc3949ba59abbe56e057f20f883e'))) in IndexController.php line 30
at AdminUser::whereRaw (' email = ? AND password = ? ', array ('[email protected]', 'e10adc3949ba59abbe56e057f20f883e')) in IndexController.php line 30
at IndexController->signin ()
at call_user_func_array (array (object (IndexController ), 'signin'), array ()) in Container.php line 502
at Container->call (array (object (IndexController ), 'signin'), array ()) in Application.php line 1348
at Application->callControllerCallable (array (object (IndexController ), 'signin'), array ()) in Application.php line 1313
at Application->callLumenController (object (IndexController ), 'signin', array (true, array ('uses' => 'App\Http\Controllers\Admin\IndexController@signin'), array ())) in Application.php line 1284
at Application->callControllerAction (array (true, array ('uses' => 'App\Http\Controllers\Admin\IndexController@signin'), array ())) in Application.php line 1252
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