Bug 266735

Summary: Digikam displays no images: "unable to create io-slave" (OS X)
Product: [Applications] digikam Reporter: Jan Gosmann <jan>
Component: Database-AlbumsAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: caulier.gilles
Priority: NOR    
Version: 1.8.0   
Target Milestone: ---   
Platform: MacPorts   
OS: macOS   
Latest Commit: Version Fixed In: 5.7.0
Sentry Crash Report:

Description Jan Gosmann 2011-02-20 16:48:34 UTC
Version:           1.8.0 (using KDE 4.6.0) 
OS:                OS X

I am just forwarding a bug reported to the MacPorts bug tracker:
https://trac.macports.org/ticket/28308

Because for me Digikam crashes on startup (bug 266733) I am not able to verify this, but there used to be similar problem with older versions. (However, I think KDE 4.5 and Digikam 1.8.0 worked fine.) 

Reproducible: Didn't try

Steps to Reproduce:
Start Digikam.

Actual Results:  
No images are shwon.

Expected Results:  
Images in an album are shown.
Comment 1 Jan Gosmann 2011-02-20 16:50:41 UTC
Please not that there were posted some logs in the original report in the MacPorts bug tracker.
Comment 2 Jan Gosmann 2011-03-03 14:43:59 UTC
I got Digikam to start on my computer again and can therefore also provide a log:

GLaDOS:~> /Applications/MacPorts/KDE4/digikam.app/Contents/MacOS/digikam
KGlobal::locale::Warning your global KLocale is being recreated with a valid main component instead of a fake component, this usually means you tried to call i18n related functions before your main component was created. You should not do that since it most likely will not work 
QSqlDatabasePrivate::removeDatabase: connection 'ConnectionTest' is still in use, all queries will cease to work.
2011-03-03 14:40:43.130 digikam[1449:903] Can't open input server /Library/InputManagers/MultiClutchInputManager.bundle
Time elapsed: 81 ms
Model: Time elapsed: 144 ms
TextureColorizer: Time elapsed: 37 ms
Time elapsed: 19 ms
Model: Time elapsed: 56 ms
Time elapsed: 13 ms
Model: Time elapsed: 46 ms
Time elapsed: 13 ms
Model: Time elapsed: 44 ms
Time elapsed: 13 ms
Model: Time elapsed: 44 ms
digikam(1449)/digikam (core) Digikam::StateSavingObjectPriv::getGroupFromObjectName: Object name for  Digikam::ImagePropertiesSideBarDB(0x127b9cc20)  is empty. Returning the default config group 
digikam(1449)/digikam (core) Digikam::StateSavingObjectPriv::getGroupFromObjectName: Object name for  Digikam::ImagePropertiesSideBarDB(0x1285a7bd0)  is empty. Returning the default config group 
digikam(1449): couldn't create slave: "Unable to create io-slave:
klauncher said: Error loading 'kio_digikamdates'.
" 
digikam(1449)/digikam (core) Digikam::AlbumManager::slotDatesJobResult: Failed to list dates 
digikam(1449): couldn't create slave: "Unable to create io-slave:
klauncher said: Error loading 'kio_digikamsearch'.
" 
digikam(1449)/digikam (core) Digikam::ImageInfoJob::slotResult: Failed to list url:  "Could not start process Unable to create io-slave:
klauncher said: Error loading 'kio_digikamsearch'.
." 
digikam(1449): couldn't create slave: "Unable to create io-slave:
klauncher said: Error loading 'kio_digikamalbums'.
" 
digikam(1449)/digikam (core) Digikam::ImageAlbumModel::slotResult: Failed to list url:  "Could not start process Unable to create io-slave:
klauncher said: Error loading 'kio_digikamalbums'.
Comment 3 caulier.gilles 2011-03-03 19:47:49 UTC
Can yo start Kate editor, or Dolphin file manager whithout problem ?

Gilles Caulier
Comment 4 Jan Gosmann 2011-03-04 17:19:13 UTC
Yes, Kate and Dolphin work - as far as I tested them - without any problems. At least they show folders and files.
Comment 5 Jan Gosmann 2011-03-15 21:27:30 UTC
With kdelibs 4.6.1 the images are shown again. :)
Comment 6 caulier.gilles 2011-03-15 22:43:03 UTC
Thanks Jan,

Do you have tried 2.0.0 source code from git repository ?

Gilles Caulier
Comment 7 Jan Gosmann 2011-03-15 23:13:58 UTC
No, I just tried 1.9.0 until now.
Comment 8 Jan Gosmann 2011-03-16 18:15:15 UTC
Now I tried to compile the source code from the git repository, but that failed. I filed a new ticket: https://bugs.kde.org/show_bug.cgi?id=268668
Comment 9 caulier.gilles 2017-07-25 17:06:51 UTC
This problem is releavant of digiKam KIO Slaves and all of these have been dropped in favor of a multi-threaded interface to query the database.