How to install SleepingOwlAdmin demo?

Question

Laravel

I'm trying to install SleepingOwlAdmin demo using https://sleepingowladmin.ru/docs/fast_start
But when I get to the last line I have the following:

php artisan migrate --seed

In Connection.php line 664:

  SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known (SQL: select * from information_schema.tables where table_schema = demo_soa and table_name = migrations)


In PDOConnection.php line 47:

  SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known


In PDOConnection.php line 43:

  SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known


In PDOConnection.php line 43:

  PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known