composer install Problem

[fokrule]

I am getting this error while trying to composer install

[Illuminate\Database\QueryException]
SQLSTATE[HY000] [1044] Access denied for user ''@'localhost' to database 'forge' (SQL: se

[PDOException]
SQLSTATE[HY000] [1044] Access denied for user ''@'localhost' to database 'forge'

Script php artisan optimize handling the post-install-cmd event returned with error code 1

[MN-dev]

make new database and put it into .env file