<?php

namespace Application\Migrations;

use Doctrine\DBAL\Migrations\AbstractMigration,
    Doctrine\DBAL\Schema\Schema;

/**
 * Auto-generated Migration: Please modify to your need!
 */
class Version20120712145445 extends AbstractMigration
{
    public function up(Schema $schema)
    {
        // this up() migration is autogenerated, please modify it to your needs
        $this->abortIf($this->connection->getDatabasePlatform()->getName() != "mysql");
        
        $this->addSql("CREATE TABLE fos_user (id INT AUTO_INCREMENT NOT NULL, username VARCHAR(255) NOT NULL, username_canonical VARCHAR(255) NOT NULL, email VARCHAR(255) NOT NULL, email_canonical VARCHAR(255) NOT NULL, enabled TINYINT(1) NOT NULL, salt VARCHAR(255) NOT NULL, password VARCHAR(255) NOT NULL, last_login DATETIME DEFAULT NULL, locked TINYINT(1) NOT NULL, expired TINYINT(1) NOT NULL, expires_at DATETIME DEFAULT NULL, confirmation_token VARCHAR(255) DEFAULT NULL, password_requested_at DATETIME DEFAULT NULL, roles LONGTEXT NOT NULL COMMENT '(DC2Type:array)', credentials_expired TINYINT(1) NOT NULL, credentials_expire_at DATETIME DEFAULT NULL, UNIQUE INDEX UNIQ_957A647992FC23A8 (username_canonical), UNIQUE INDEX UNIQ_957A6479A0D96FBF (email_canonical), PRIMARY KEY(id)) ENGINE = InnoDB");
    }

    public function down(Schema $schema)
    {
        // this down() migration is autogenerated, please modify it to your needs
        $this->abortIf($this->connection->getDatabasePlatform()->getName() != "mysql");
        
        $this->addSql("DROP TABLE fos_user");
    }
}

Add migration to create fos_user table
Add migration to create fos_user table
