Dolphin Error

[jglen490]

I'm running Kubuntu 16.04.2 and recently added the ppa:kubuntu-ppa/backports repo.

After adding the repo and updating packages, everything seemed to work O.K. until I started Dolphin. Dolphin starts up, but then displays an error:

Unable to create io-slave. klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.

When I click on any of the listed Places or Devices the error is redisplayed and no file listings appear. This only started happening after loading the repo. I did apt-get update and apt-get dist-upgrade after adding the repo.

When starting Dolphin via a the command line, the following appears.

john@John-Desktop:~$ dolphin
Trying to convert empty KLocalizedString to QString.
Cannot creat accessible child interface for object:  PlacesView(0xa0f9928)  index:  7
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/trash.so'.\n"
kf5.kio.core: "Unable to create io-slave. klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/trash.so'.\n"
kf5.kio.core: "Unable to create io-slave. klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/trash.so'.\n"
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.\n"
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.\n"
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.\n"
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.\n"
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.\n"
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.\n"
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.\n"
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.\n"
kf5.kio.core: couldn't create slave: "klauncher said: Error loading '/usr/lib/i386-linux-gnu/qt5/plugins/kf5/kio/file.so'.\n"

And the last line is repeated every few seconds. The library file "file.so" does not exist on my system and I believe it is not in the Xenial package list.

[jglen490]

The file does exist in the location quoted in the error. Sorry for the confusion.

[oshunluvr]

Assuming your upgrade went OK, have you tried a different user account?

If it works with a different user but not on yours try deleting ~/.cache/ and running "kbuildsycoca5 --noincremental"

If that doesn't help, try to rename ~/.config/dolphinrc

[oshunluvr]

Also, this can happen if you tried to run Dolphin using sudo. Verify ALL files in your home and your user tmp location are owned by you and not root.

[jglen490]

Thanks for your reply. Permissions look good. Here's the output from kbuild sycoca5:

john@John-Desktop:~$ kbuildsycoca5 --noincremental
kbuildsycoca5 running...
The desktop entry file "/home/john/.local/share/applications/test-predicate-openinwindow.desktop" has Type= "Application" but no Exec line
kf5.kservice.sycoca: Invalid Service :  "/home/john/.local/share/applications/test-predicate-openinwindow.desktop"
kf5.kservice.sycoca: The menu spec file contains a Layout or DefaultLayout tag without the mandatory Merge tag inside. Please fix your file.

I'm not sure what to do with that ...

[jglen490]

The contents of test-predicate-openinwindow.desktop:

[Desktop Action open]
Exec=kioclient exec %25f
test-predicate-openinwindow.desktop (END)

[oshunluvr]

Was this and upgraded (from a previous Kubuntu) install or fresh 16.04? I ask because:

1. That file does not exist on my system under my home/.local~~~
2. It does exist under /usr/share/solid/actions/
3. It's contents are nothing like yours:

[FONT=monospace][COLOR=#5454FF][B]~[/B][/COLOR][COLOR=#000000]$ cat /usr/share/solid/actions/test-predicate-openinwindow.desktop  [/COLOR]
[Desktop Entry]
X-KDE-Solid-Predicate=[ [ [ StorageVolume.ignored == false AND StorageVolume.usage == 'FileSystem' ] OR [ IS StorageAccess AND StorageDrive.driveType == 'Floppy' ] ] OR StorageAccess.ignored == false ]
Type=Service
Actions=open;

[Desktop Action open]
Name=Open with File Manager
[COLOR=#a9a9a9]<<LANGUAGES REMOVED>>[/COLOR]
Exec=kde-open5 "%f"
Icon=system-file-manager

[/FONT]

[oshunluvr]

I'd delete (rename) that file and try again.

[jglen490]

O.K. Not sure what happened, but I decided to try another reboot assuming that there might be some incomplete actions.

From the kicker, I tried Shutdown. I tried Reboot. Neither worked. In fact the only selection in the Power/Session group that worked was Lock.

So back to konsole and good old sudo shutdown -r now. That worked and it took a long time to reboot. This was about the third reboot since adding all the updates from the backports PPA.

Dolphin works, all the Power/Session selections work (or at least start) and the kicker itself has a different appearance. Third time's a charm ...

Thank you for your replies, oshunluver!

[jglen490]

And I've been on 16.04 (from a clean install after being on 14.04) for some time now and only recently added the backports based on a post in Kubuntu Announcements. I think it's all good now ...

[oshunluvr]

Glad it worked itself out. Must have been some unfinished housekeeping...

[oshunluvr]

Re. the two different files; interestingly both commands issued via the cli have the same result here.

[jglen490]

I don't know, it all looks good so far, so it had to be unfinished housekeeping. There were a huge pile of updates after adding the backports PPA - 500+. Perhaps an extra reboot or two was what it took to get it all done - kind of weird but all's well that ends well.