This package can be used in Laravel 5.8 or higher.
This package uses Laravel's Gate layer to provide Authorization capabilities.
The Gate/authorization layer requires that your User model implement the Illuminate\Contracts\Auth\Access\Authorizable contract.
Otherwise the can() and authorize() methods will not work in your controllers, policies, templates, etc.
In the Installation instructions you'll see that the HasRoles trait must be added to the User model to enable this package's features.
Thus, a typical basic User model would have these basic minimum requirements:
Additionally, your User model/object MUST NOT have a role or roles property (or field in the database), nor a roles() method on it. Those will interfere with the properties and methods added by the HasRoles trait provided by this package, thus causing unexpected outcomes when this package's methods are used to inspect roles and permissions.
Similarly, your User model/object MUST NOT have a permission or permissions property (or field in the database), nor a permissions() method on it. Those will interfere with the properties and methods added by the HasPermissions trait provided by this package (which is invoked via the HasRoles trait).
This package publishes a config/permission.php file. If you already have a file by that name, you must rename or remove it, as it will conflict with this package. You could optionally merge your own values with those required by this package, as long as the keys that this package expects are present. See the source file for more details.