Laravel Voyager:删除表格的所有默认面包

When I installed voyager, I cleaned up all the default BREADs such as users and roles to just begin my work from scratch and then when I tried to go roles tab on the dashboard I got an error:

( ErrorException: Trying to get property of non-object )

and also the Menu Builder in the provided dropdown box tools that comes with Voyager gives an error

NotFoundHttpException

when visiting this route:

http://localhost:8000/admin/menus

Is it happening because I have deleted a BREAD that I should not have deleted. ?

Attempting to delete data manually may end up introducing errors, because you might delete data used or referenced somewhere.

If you don't want dummy data with your installation, install Voyager without dummy data, rather than manually deleting the data yourself.

Use the following command to install Voyager without dummy data:

php artisan voyager:install

Adding the --with-dummy flag installs with dummy data:

php artisan voyager:install --with-dummy