How to compile Digikam?

[Patrick Gerlier]

Breaking news! Don't bother to answer my previous message, it is not 
relevant.

A - Line about slot Digikam::SurveyWindow::slotDeleteFinalItem()is 
probably a minor bug

It is not related to my problem and should be reported.

B - I end up in a segfault

After adding a few debugging prints to stderr like "I was here XXX", I 
spotted the issue in a loop of AlbumManager::scanPAlbums() of 
albummanager_palbum.cpp. The loop start ~line 110 and is preceded by 
comment // create all new albums. I was fortunate enough that the 
segfault occurred on first iteration. It was caused by invalid album 
relativePath "-r" (without initial "/"). I changed the dash for a slash 
and segfault disappeared.

I have really no idea when and why the path was corrupted. I am happy to 
have recovered my DB.

Good day all!

Patrick

Le 24/10/2026 à 15:28, Patrick Gerlier a écrit :
>
> Thanks Gilles,
>
> I have compiled digikam and I can proceed with my faulty DB.
>
> However, it apparently went through a schema upgrade and this changed 
> the error. I no longer segfault; instead, digikam aborts with:
>
> qt.core.qobject.connect: QObject::connect: No such slot 
> Digikam::SurveyWindow::slotDeleteFinalItem() in 
> /builddir/build/BUILD/digikam-9.1.0-build/digikam-9.1.0/core/utilities/survey/surveywindow_setup.cpp:68
> qt.core.qobject.connect: QObject::connect:  (receiver name: 'Survey')
> kf.xmlgui: Unhandled container to remove :  Digikam::DigikamApp
>
> Same error with the distro-package version.
>
> To make sure, I checked against another DB (which also gets a schema 
> upgrade) and this opens like a charm.
>
> Which track should I follow to guess how I land in 
> SurveyWindow::setupActions() ? A "Find in all files" did not find 
> slotDeleteFinalItem but it may be an implictly generated name. 
> However, there is a similar slot in LightTableWindow; but it is 
> definitively not a SurveyWindow::… and I find no declaration for it.
>
> Since the faulty database was created many releases before the Survey 
> tool was added, there is no reason for it to try and open in the 
> Survey tool.
>
> I have narrowed down the problem to execution of 
> AlbumManager::instance()->startScan(). So, what's next?
>
> Patrick
>
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