If you’re upgrading from v1 to v2, there’s no built-in automatic migration/conversion of your data. You will need to carefully adapt your code and your data manually.
Tip: @fabricecw prepared a gist which may make your data migration easier.
You will also need to remove your old
laravel-permission.php config file and publish the new one
permission.php, and edit accordingly (setting up your custom settings again in the new file, where relevant).