Created attachment 124076 [details] kdenlive.stderr SUMMARY Clicking "Render" results in D-Bus error and no message is shown to user and nothing is rendered. I followed the description on the official website: STEPS TO REPRODUCE 1. I downloaded and installed Kdenlive 19.08.02 Snap package from [1]. 2. I run through the quickstart tutorial [2]. 3. I clicked on "Render" button in the symbol toolbar and chose "mp4" as export format. - [1]: https://snapcraft.io/kdenlive - [2]: https://userbase.kde.org/Kdenlive/Manual OBSERVED RESULT - In GUI, no error message is shown at all and the rendering queue shows only "Waiting..." - On stderr following error message is printed: * CREATED JOB WITH ARGS: ("/snap/kdenlive/22/usr/bin/melt", "/tmp/kdenlive-VwucRB.mlt", "/home/benedikt/Downloads/kdenlive-quickstart/kdenlive-quickstart.mp4", "-pid:6061") starting kdenlive_render process using: "/snap/kdenlive/22/usr/bin/kdenlive_render" dbus[6223]: arguments to dbus_message_new_method_call() were incorrect, assertion "_dbus_check_is_valid_path (path)" failed in file ../../../dbus/dbus-message.c line 1366. This is normally a bug in some application using the D-Bus library. EXPECTED RESULT At least, the (GUI) user should be informed with an error box. And above all, kdenlive should render the video correctly by using D-Bus properly. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Ubuntu 18.04.3 LTS/ The "About" dialog of the 19.08.2 snap package reports: - KDE Frameworks 5.61.0 - Qt 5.12.3 (kompiliert gegen 5.12.3) - Das xcb Fenstersystem ADDITIONAL INFORMATION stderr is attached.
Please try with the current Kdenlive AppImage version 19.08.3b to see if there are any packaging issues https://files.kde.org/kdenlive/release/ If the problem/issue doesn't occur when using the AppImage, then it's your configuration or packaging.
Thanks "emohr". With version 19.08.3 (flatpak package), kdenlive renders without any problems. Here is flatpak's detailed version output: user@host:~ $ sudo flatpak info org.kde.kdenlive Ref: app/org.kde.kdenlive/x86_64/stable ID: org.kde.kdenlive Arch: x86_64 Branch: stable Origin: flathub Collection ID: org.flathub.Stable Date: 2019-11-08 04:41:26 +0000 Subject: kdenlive 19.08.3 (1a8029f2) Commit: cf5cb84cc4a9959ed5b4818a7592174a4a760e7ec4d80b873bd8544e4b272b56 Parent: c5dca2af12677f045ac7806b93cc86b1f1dc0e7e4724541a6f6dfb109555b2d8 Location: /var/lib/flatpak/app/org.kde.kdenlive/x86_64/stable/cf5cb84cc4a9959ed5b4818a7592174a4a760e7ec4d80b873bd8544e4b272b56 Installed size: 140,2 MB Runtime: org.kde.Platform/x86_64/5.12 Sdk: org.kde.Sdk/x86_64/5.12
Nevertheless, I think that the user should be informed by using a error/warning/info popup instead of failing silently here.