I don't like flatpak, snap and Co.
Fortunately i have keep old pkg of the previous versions of Kstars.
And i don't use indi-gphoto.

@Khalid
On Ubuntu 20.04 libraw19 is a dependency for example krita:
--\ Dépend (48)
...
--- libraw19 (>= 0.19.0)

Same problem for Siril, gthumb

I should have stayed in 18.04

I don't like snap at all. For every package there is a /snap filesystem, and Canonical plans to distribute Chrome as a snap only, acting as a sole middleman broker via their app store (just like Google Play and iOS).

Flatpak on the other hand may come in handy when you need statically built packages, exactly like this case. There is no centralized store in the hands of one company.

But I agree, I avoid the concept where I can.

Well, sooner or later I will need to move to 20.04, and then I will face this problem.
I don't know what I will do. Maybe compile from source and get it over with?

Not a big fan of them either, but in this case, it may be the only option to get the latest kstars and your other tools, unless you compile everything from scratch.

Kstars is a good all-in-one solution.
But i use too CCDciel+Skychart+PHD2
The solution is perhaps Kstars in a flatpak package ?

Ok, so just build from the source. It only takes 10 minutes.

Not everyone can compile.
And I don't know when the github repository is stable.
There is indeed a 3.4.3 branch, but it crashes (park / unpark with LX200_OnSTep).
Ubuntu 20.04 is widely used and it is a shame not to be able to install Kstars directly alongside other applications (especially Siril).
For now, I'll be using something other than Kstars.
If I really need it, I would install in a VM with no other problematic apps.

Hi
Are you 100% certain that you have the 20.04 repository?When you upgrade to 20.04, as part of that process, it disables the 18.04 repositories.
HTH

Yes, i have all repository pointed on focal (20.04).
libraw20 doesn't exist in focal (packages.ubuntu.com/search?suite=focal&a...ents&keywords=libraw)

Hi

It's in Jasem's 20.04 PPA
Cheers

Yes, but it breaks packages that use lbraw19

Yes, libraw20 breaks libraw19 because the deb control has libraw19 set conflicts and replaces. Replaces shouldn't be set because it doesn't overwrite anything. I'm not sure if there is actually a conflict but there doesn't seem to be.

You can get it to install if you download the deb:
apt-get download libraw20

Unpack it:
ar x libraw20_0.20.0~202008211452~ubuntu20.04.1_amd64.deb

Unpack control:
tar -xf control.tar.xz

Edit control:
delete Conflicts: libraw19
delete Replaces: libraw19

Repack control
tar --ignore-failed-read -cvzf control.tar.gz md5sums control

Repack the deb
ar rcs libraw20_fixed.deb debian-binary control.tar.gz data.tar.xz

Install
sudo dpkg -i libraw20_fixed.deb

libraw-dev conflicts so this is what led to the conflicts/replaces issue.