SQLPackage : Import or Export SQL Azure BACPAC without users

I know how to use SQLpackage.exe. I can export from SQL Azure and create a bacpac. I can also Import to SQL Server via SQLPackage.exe. I want to export or import without the users in the database. The users are preventing the normal import to fail. > Error importing database :could not import package. > > Error SQL72014 Cannot grant, deny or remove permissions to or from special roles I can't delete the users before I export, or exclude them from the import. Currently we have to backup the database, restore it on SQLAzure, delete the use on this second database, then create a bacpac from the restored database. How do I get around this? can I use IgnoreUserSettingsObjects with my sqlpackage ? I tried using the parameters but it fails