Laravel 5.1 : Class 'Doctrine\DBAL\Driver\PDOSqlite\Driver' not found

I'm using laravel 5.1 , I'm trying to do a migrate:refresh, I get an error :

Class 'Doctrine\DBAL\Driver\PDOSqlite\Driver' not found in ../vendor/laravel/framework/src/Illuminate/Database/SQLiteConnection.php

[Symfony\Component\Debug\Exception\FatalErrorException] Class 'Doctrine\DBAL\Driver\PDOSqlite\Driver' not found

Doctrine/dbal is already required in my composer.json

 "require": {
        "php": ">=5.5.9",
        "laravel/framework": "5.1.*",
        "Doctrine/dbal": "^2.5"
    }

So I want to ask what is wrong in my laravel project.

via Chebli Mohamed