With this code:

my $host_view = Vim::find_entity_view( view_type => 'HostSystem' );
$permission = Permission->new(  
      principal => "$localuser",
      group    => 'false',
      roleId    =>  FindRoleID( $authMgr, $rolename ),
      propagate => 'true', 
);
@permissions = ($permission);
$authMgr->SetEntityPermissions(
            entity    => $host_view,
            permission => @permissions, 
);

I want to assign a local user a custom role (both exist). The role should be assigned on the root level of the host, so that's why I use the view_type HostSystem. What am I doing wrong? Thanks in advance