[kde] [Bug 449234] I'm getting a code 100 error every time I try to open a directory through a program or my super menu, after switching from XFCE

[Dae Lakin]

https://bugs.kde.org/show_bug.cgi?id=449234

--- Comment #5 from Dae Lakin <daethederg at gmail.com> ---
(In reply to Nicolas Fella from comment #3)
> (In reply to Nate Graham from comment #2)
> > > Could not find the program 'exo-open'
> > 
> > This means that your system's file manager is still trying to use some old
> > XFCE thing. You'll need to manually reset it by going to System Settings >
> > Applications > Default Applications > File Manager > change it to "Dolphin".
> > 
> > Normally this happens automatically at system installation, but evidently it
> > is a manual process when you install the system manually like you've done.
> 
> The actual cause is somewhat different. xdg-open calls exo-open when it
> detects that it's running on XFCE, and kde-open when it detects that it's
> running on Plasma. It does that detection based on the value of
> XDG_CURRENT_DESKTOP. Setting that to "KDE" should make things work

Actually, it's not set to XFCE
using `wmctrl -m` I checked and my current window manager is registered as
bspwm, which is, indeed, the wm I'm using. I'll try adding a script to my bspwm
loader to change XDG_CURRENT_DESKTOP to KDE on login, and report back to tell
you if this worked

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