在laravel 5中的mongodb数据库表中播种

Question

I am trying to seed tables in mongodb but it shows error like this:

Fatal error: Call to a member function prepare() on null in C:\xampp\htdocs\student-information-system\vendor\laravel\framework\src\Illuminate\Database\Connection.php on line 390

[Symfony\Component\Debug\Exception\FatalErrorException]
  Call to a member function prepare() on null

How to seed in mongodb database tables in laravel 5?