[plugin..] requires php ^5.3.3 || ^7.0 -> your php version (8.0.3) does not satisfy that requirement.
If you are using the PHP v8, some plugins are not supported in the latest Laravel version and may cause installation errors. The new --ignore-platform-req option can be used to set specific requirements that Composer can ignore.
PDOException::("SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it")
Check if your web server already started. Start the MySQL in the XAMPP controller, WAMP, etc.
Check the database port to DB_PORT=3306 in .env file.
Try to run the following commands: