Created attachment 107843 [details] kdiskfree_not_found_by_dolhpin when clicking on dolphin disk usage bar, the following pop up shows filelight but explains kdiskusage is not installed. It offers me to visit the website. kdiskusage is installed as you can see from the screenshot. the binary is started with "kdf". The version of dolphin and kdiskfree is 17.08.1
This bug is at frameworks-knewstuff. The kdf is installing org.kde.kdf.desktop. The knewstuff frameworks is looking kdf.desktop -> https://lxr.kde.org/source/frameworks/knewstuff/data/kmoretools-desktopfiles/ A workaround is to symlink the org.kde.kdf.desktop to kdf.desktop.
This is resolved by https://cgit.kde.org/knewstuff.git/commit/?id=7d3992479ea1e7a2ad523a79c73434c44c61f38c, which just went in yesterday! As such, it is a duplicate of https://bugs.kde.org/show_bug.cgi?id=369646, which is fixed now. *** This bug has been marked as a duplicate of bug 369646 ***