QDBusConnection: name 'xxx.yyy.yyy' had owner '' but we thought it was ':n.nn'

Thiago Macieira thiago at kde.org
Thu Mar 31 06:41:34 PDT 2011

Em quinta-feira, 31 de março de 2011, às 13:39:24, Bogdan Lotko escreveu:
> Hello,
> Suddenly the message as in the title appeared during my program
> start-up. (written to the sdterr(?) on terminal)

It's a QtDBus warning.

> At the beginning I thought that it has something to do with the
> DBusServiceWatcher, that I've just installed in the program.
> (The creation of the watcher instance that shall signalize
> unregistration of a service and the call to the addWatchedService()
> method have been done BEFORE the service start. )
> Then (after some minor changes, experiments with watcher and of course
> program starts) the message disappeared suddenly ???
> My questions:
> - What is the meaning of this message. Is it something one should care
> about?

It means a bug in QtDBus is if you see it happen.

> - Is it something specific for the Qt implementation?


> - Could somebody describe the situation in that the message occurs, and
> how it could be  avoided / eliminated?

Yes: it means there's a bug. To be eliminated, the bug must be fixed.

Make sure you're using a very recent release of Qt. There were some 
refcounting problems in the first 4.6 releases.

Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
  Senior Product Manager - Nokia, Qt Development Frameworks
      PGP/GPG: 0x6EF45358; fingerprint:
      E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358
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