[kdenlive] Unable to create KIO worker. Can not find a KIO worker for protocol 'tags'

Hallo. I am amazed Kdenlive is available for free.

With that said, I uninstalled an older version of kdenlive (the one from the debian repository). I decided to install the new one and learn how to use it.

I install the new version and I get this error message when starting up the app:
Unable to create KIO worker. Can not find a KIO worker for protocol ‘tags’.

The app seems to start up fine after I dismiss the message, but I haven’t tried using it.

version : 23.04.3
Linux appimage.
I would be grateful for any tips to get rid of the error message.

Do you use the AppImage from the Kdenlive download site?
If not, please try.
If yes, then something with your system settings is wrong. Maybe a Linux user can help.

Yes, I am using the official appimage. I have seen other posts with this problem but I cannot find a solution. The debian repo version ( 20.12.3-1 ) was running without any error message. So I think something changed in kdenlive.

You bet! 20.12.3 is about three years behind the current version 23.04.3

Still happens on latest version: kdenlive 23.08.0

System: Kernel: 6.1.0-9mx-ahs-amd64 [6.1.27-1~mx21ahs+1] x86_64 bits: 64 compiler: gcc v: 10.2.1 parameters: BOOT_IMAGE=/boot/vmlinuz-6.1.0-9mx-ahs-amd64 root=UUID=<filter> ro Desktop: Xfce 4.16.0 tk: Gtk 3.24.24 info: xfce4-panel wm: xfwm 4.16.1 vt: 7 dm: LightDM 1.26.0 Distro: MX-21.3_x64 Wildflower August 28 2022 base: Debian GNU/Linux 11 (bullseye) Boot Mode: UEFI

Tested yesterday: same problem with older 22.12.3 release:

I need to test more older versions to see when this started.

kdenlive-21.12.0-x86_64.appimage 172.556 MB
kdenlive-21.12.1-x86_64.appimage 172.591 MB
kdenlive-21.12.2-x86_64.appimage 173.345 MB
kdenlive-21.12.3-x86_64.AppImage 208.802 MB
kdenlive-22.12.0-x86_64.AppImage 202.798 MB
kdenlive-22.12.1-x86_64.AppImage 199.361 MB
kdenlive-22.12.2-x86_64.AppImage 174.825 MB
kdenlive-22.12.3-x86_64.AppImage 174.923 MB

The problem started with the 21.12.3 release, for anyone still following this. Not a show-stopper, but definitely annoying to see this error every time kdenlive starts up. The 21.12.3 release and every single appimage released after it shows an error message when starting kdenlive (at least on my system). The 21.12.3 release shows:

Unable to create io-slave. Can not find io-slave for protocol ‘tags’.

For anyone experiencing this and who wants to see these errors gone on their Linux system, a trip back to 2021 is required. Release 21.12.2 or earlier is the go.

You can find the bug report for this at:
On startup, error popup: Unable to create io-slave

Maybe you could add an attachment to the bug, with your notes, including your OS information.