Problem with adding admin-bundle to symfony3.3

Question

Want to implement symfony backend function
Created a new project, symfony new blog
Composer require sonata-project/admin-bundle
composer require sonata-project/doctrine-orm-admin-bundle

Refer to the steps in https://sonata-project.org/bu...
.

Finally, http://localhost/admin cannot be accessed

Does this only support version 2.x, not 3.3? ?

Answer 1

It turned out to be the default project and it was not changed to the official environment yet

Requires http://localhost/app_dev.php/... to access