Php artisan migrate - ERROR

[uvlazhnitel]

Hi all. I encountered a problem in my laboratory work on web technologies. When I use the php artisan migrate command I get the following error. 

Illuminate\Database\QueryException 

  SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for db failed: nodename nor servname provided, or not known (Connection: mysql, SQL: select table_name as `name`, (data_length + index_length) as `size`, table_comment as `comment`, engine as `engine`, table_collation as `collation` from information_schema.tables where table_schema = 'db' and table_type in ('BASE TABLE', 'SYSTEM VERSIONED') order by table_name)

  at vendor/laravel/framework/src/Illuminate/Database/Connection.php:813

809▕                     $this->getName(), $query, $this->prepareBindings($bindings), $e

810▕                 );

811▕             }

812▕ 

  ➜ 813▕             throw new QueryException(

814▕                 $this->getName(), $query, $this->prepareBindings($bindings), $e

815▕             );

816▕         }

817▕     }

+48 vendor frames 

  49  artisan:13

Illuminate\Foundation\Application::handleCommand(Object(Symfony\Component\Console\Input\ArgvInput))

I am using ddev. MacOS. I've already tried everything and don't know how to fix it. Who knows how to fix this?

[requinix]

If you're not running this in Docker, or perhaps even if you are, it sounds like your database configuration wasn't set up properly. Check the hostname you have it using.