[horde] Cannot add any permission

[Otto Stolz]

Hello,

I had this posted in the Turba list, but on second thought
I guess that it is a Horde problem. So I am posting it here,
in the Horde list. Turba-list readers, please forgive the
cross-posting.

I had written:
> I am testing Horde: 3.1.2 + Imp H3 (4.1.2) + Turba H3 (2.1.3).
>
> I have logged in as a Horde administrator, and invoked the Permissions
> menu. There is only one entry, viz. "All Permissions".
> If I click on the little key icon next to it, I get the error message:
> "Invalid parent permission.", and nothing happens.

Michael Rubinsky has written:
> Did you configure a DataTree backend for Horde?

Yes, I have.

Excerpt from config/conf.php:
> $conf['datatree']['params']['driverconfig'] = 'horde';
> $conf['datatree']['driver'] = 'sql';
> $conf['group']['driver'] = 'datatree';

There are even some entries in Horde's datatree, dating back to
March till May (I've checked this with a MySQL query), when I had
tried a Kronolith, and Turba, installation; Horde's DataTre menu
shows:
> ─┬─horde.groups
>  └┬─Rechenzentrum
>   ├─Gruppenleiter
>   ├─Leitung
>   └─Zentrale Systeme
> ─┬─horde.shares.kronolith
>  ├─Hugine.Habicht at uni-konstanz.de
>  ├─Otto.Stolz at uni-konstanz.de
>  └─reginald.muchsel at uni-konstanz.de
> ─┬─horde.shares.turba
>  └┬─localsql
>   ├─Hugine.Habicht at uni-konstanz.de
>   └─Otto.Stolz at uni-konstanz.de

Thank you for any hint.

Best wishes,
    Otto Stolz