I install GIMP as shown in https://www.gimp.org/downloads/ by run the command in terminal
flatpak install https://flathub.org/repo/appstream/org.gimp.GIMP.flatpakref
Output
This application depends on runtimes from:
https://dl.flathub.org/repo/
Configure this as new remote 'flathub' [y/n]: y
Installing: org.gimp.GIMP/x86_64/stable
Required runtime for org.gimp.GIMP/x86_64/stable (org.gnome.Platform/x86_64/3.24) is not installed, searching...
Found in remote flathub, do you want to install it? [y/n]: y
Installing: org.gnome.Platform/x86_64/3.24 from flathub
[####################] 10 delta parts, 72 loose fetched; 196650 KiB transferred
Installing: org.freedesktop.Platform.ffmpeg/x86_64/1.6 from flathub
[####################] 1 delta parts, 2 loose fetched; 2649 KiB transferred in 9
Installing: org.gtk.Gtk3theme.Ambiance/x86_64/3.22 from flathub
[####################] 1 delta parts, 1 loose fetched; 292 KiB transferred in 5
Installing: org.gnome.Platform.Locale/x86_64/3.24 from flathub
[####################] 4 metadata, 1 content objects fetched; 14 KiB transferred
Installing: org.gimp.GIMP/x86_64/stable from flathub
[####################] 2 delta parts, 11 loose fetched; 40337 KiB transferred in
Installing: org.gimp.GIMP.Locale/x86_64/stable from flathub
[####################] 3 metadata, 1 content objects fetched; 6 KiB transferred
Then I tried again, it shown that GIMP is installed
error: App org.gimp.GIMP, branch stable is already installed
Now, I want to run GIMP, but I don't know how to start GIMP. I cannot find GIMP anywhere.
Tried to use terminal
gimp
zsh: command not found: gimp
Then, I use "Search your computer" (top left icon on desktop) and I cannot find GIMP anywhere.
So, where is flatpak install GIMP ?
Type in terminal
Then it will open GIMP
Open the terminal and run the command:
sudo apt install flatpak
This should install the necessary items for the unwrapping of Gimp. Then type in:
flatpak install https://flathub.org/repo/appstream/org.gimp.GIMP.flatpakref
This should allow you to download and install Gimp into your computer.
Then run:
flatpak run org.gimp.GIMP
It should now be running.
Why are you trying to install GIMP from a Flatpack package instead of installing the native GIMP snap package? To install the latest version of GIMP in all currently supported versions of Ubuntu open the terminal and type:
If you need to have full access to external media (such as USB flash drive, SD/MicroSD card, additional mounted hard drive and so on), run the following command:
You can also install the latest version of GIMP (v2.10) from the Ubuntu Software app by selecting the GIMP snap package which is called GIMP in Ubuntu Software or in Ubuntu 18.10 and later you can install GIMP (v2.10) using apt with
sudo apt install gimp
snapd
autoupdates installed snap packages by default.First install the whole flatpak framework :
https://flatpak.org/setup/Ubuntu/
Then go to Gimp's download page https://www.gimp.org/downloads/ or to Flathub app' store https://flathub.org/apps/details/org.gimp.GIMP
Gimp 2.10 has been « snap-ified » since but lacks localizations / translations ( as most snap packages do - which is not ok in a LTS context… )
The simple way is to install gimp from the repository universe.
Then you get a version that is tested and polished for Ubuntu. Only if this version cannot do what you want, you should look for a new version, because it might be more difficult to install, and there may be problems running it.