[solved] None of my installed flatpak app can be opened/used/loaded

[shin23]

im new to linux, just moved from windows 10 this august

as said, none of my installed flatpak app can be loaded.
i tried to install enve, natron, and opentoonz
it is installed, it is listed in the graphic section in the menu list
but when i double clicked it, nothing happens
when i tried to run it on terminal, i get this kind of answer

Entered main()
Setup Default QSurfaceFormat
Gtk-Message: 12:50:10.964: Failed to load module "xapp-gtk3-module"
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 3.3, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 0, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize 0, samples 0, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::CoreProfile)
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 3.3, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 0, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize 0, samples 0, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::CoreProfile)
Could not initialize GLX

clearly i have no idea what im looking at
what should i do to solve this problem?

[spamegg]

Hello shin23 welcome to the Forum.
Please share your system info by going to:
→→→→ Menu/System Reports/System Information/click "Copy"
and pasting it here.
(Equivalently, you can use the command inxi -Fxxxmprz on the Terminal.)

Can you also show

Code: Select all

flatpak list

Also show more error messages from all the other Flatpak apps when you launch them from the Terminal, such as

Code: Select all

flatpak run io.github.OpenToonz

Code: Select all

flatpak run fr.natron.Natron

Code: Select all

flatpak run io.github.maurycyliebner.enve

[MikeNovember]

Hi,

I can't help you directly with your problem, but I can give you a link to a flatpak tutorial I wrote:
viewtopic.php?f=42&t=368501

The 1st generic advice is to update your flatpak installation:
- flatpak framework: by adding flatpak stable PPA (see tutorial)
- installed programs and runtimes: flatpak update in a terminal; then Update Manager / Edition / Preferences / Automation and slide the cursor to have automatic flatpak updates.

Then you can try to repair your installation: flatpak repair

Finally, if you still get problems, post the error messages you get when launching your apps in a terminal, but don't forget to precise to what app the error messages correspond.

Regards,

MN

[shin23]

Hello shin23 welcome to the Forum.
Please share your system info by going to:
→→→→ Menu/System Reports/System Information/click "Copy"
and pasting it here.
(Equivalently, you can use the command inxi -Fxxxmprz on the Terminal.)

Can you also show

Code: Select all

flatpak list

Also show more error messages from all the other Flatpak apps when you launch them from the Terminal, such as

Code: Select all

flatpak run io.github.OpenToonz

Code: Select all

flatpak run fr.natron.Natron

Code: Select all

flatpak run io.github.maurycyliebner.enve

Hello spamegg thank you so much for answering
here is the data

Code: Select all

inxi -Fxxxmprz
System:
  Kernel: 5.15.0-53-generic x86_64 bits: 64
    compiler: gcc v: 11.2.0 Desktop: Cinnamon 5.4.12
    tk: GTK 3.24.33 wm: Mutter vt: 7
    dm: LightDM 1.30.0 Distro: Linux Mint 21 Vanessa
    base: Ubuntu 22.04 jammy
Machine:
  Type: Desktop Mobo: MSI
    model: H110M PRO-VH (MS-7996) v: 1.0
    serial: <superuser required>
    UEFI: American Megatrends v: 2.50
    date: 02/23/2016
Memory:
  RAM: total: 19.5 GiB used: 2.64 GiB (13.5%)
  RAM Report: permissions: Unable to run dmidecode.
    Root privileges required.
CPU:
  Info: quad core model: Intel Core i5-6500 bits: 64
    type: MCP smt: <unsupported> arch: Skylake-S rev: 3
    cache: L1: 256 KiB L2: 1024 KiB L3: 6 MiB
  Speed (MHz): avg: 800 min/max: 800/3600 cores:
    1: 800 2: 800 3: 800 4: 800 bogomips: 25599
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1
    sse4_2 ssse3 vmx
Graphics:
  Device-1: NVIDIA GM107 [GeForce GTX 750 Ti]
    vendor: ZOTAC driver: nvidia v: 515.65.01 pcie:
    speed: 2.5 GT/s lanes: 16 ports: active: none
    off: DVI-I-1 empty: DP-1,HDMI-A-1 bus-ID: 01:00.0
    chip-ID: 10de:1380 class-ID: 0300
  Display: x11 server: X.Org v: 1.21.1.3 driver: X:
    loaded: nvidia
    unloaded: fbdev,modesetting,nouveau,vesa
    gpu: nvidia display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1440x900 s-dpi: 87
    s-size: 420x263mm (16.5x10.4")
    s-diag: 496mm (19.5")
  Monitor-1: DVI-I-0 res: 1440x900 hz: 60 dpi: 87
    size: 419x262mm (16.5x10.3") diag: 494mm (19.5")
  OpenGL:
    renderer: NVIDIA GeForce GTX 750 Ti/PCIe/SSE2
    v: 4.6.0 NVIDIA 515.65.01 direct render: Yes
Audio:
  Device-1: Intel 100 Series/C230 Series Family HD
  Audio
    vendor: Micro-Star MSI driver: snd_hda_intel
    v: kernel bus-ID: 00:1f.3 chip-ID: 8086:a170
    class-ID: 0403
  Device-2: NVIDIA GM107 High Definition Audio
    [GeForce 940MX]
    vendor: ZOTAC driver: snd_hda_intel v: kernel
    pcie: speed: 8 GT/s lanes: 16 bus-ID: 01:00.1
    chip-ID: 10de:0fbc class-ID: 0403
  Sound Server-1: ALSA v: k5.15.0-53-generic
    running: yes
  Sound Server-2: PulseAudio v: 15.99.1
    running: yes
  Sound Server-3: PipeWire v: 0.3.48 running: yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express
    Gigabit Ethernet
    vendor: Micro-Star MSI driver: r8169 v: kernel
    pcie: speed: 2.5 GT/s lanes: 1 port: d000
    bus-ID: 02:00.0 chip-ID: 10ec:8168 class-ID: 0200
  IF: enp2s0 state: down mac: <filter>
  IF-ID-1: usb0 state: unknown speed: -1
    duplex: half mac: <filter>
Bluetooth:
  Device-1: LG LM-X420xxx/G2 Android Phone (USB
    tethering mode)
    type: USB driver: cdc_acm,rndis_host
    bus-ID: 1-10:7 chip-ID: 1004:6344 class-ID: 0a00
    serial: <filter>
  Report: This feature requires one of these tools:
  hciconfig/bt-adapter
Drives:
  Local Storage: total: 1.82 TiB
    used: 39.07 GiB (2.1%)
  ID-1: /dev/sda vendor: Seagate
    model: ST2000DM008-2FR102 size: 1.82 TiB
    speed: 6.0 Gb/s type: HDD rpm: 7200
    serial: <filter> rev: 0001 scheme: GPT
Partition:
  ID-1: / size: 182.74 GiB used: 38.3 GiB (21.0%)
    fs: ext4 dev: /dev/sda8
  ID-2: /boot size: 943.2 MiB
    used: 758.7 MiB (80.4%) fs: ext4 dev: /dev/sda6
  ID-3: /boot/efi size: 96 MiB used: 30 MiB (31.2%)
    fs: vfat dev: /dev/sda2
Swap:
  ID-1: swap-1 type: partition size: 7.63 GiB
    used: 0 KiB (0.0%) priority: -2 dev: /dev/sda7
Sensors:
  System Temperatures: cpu: 29.8 C pch: 45.0 C
    mobo: 27.8 C gpu: nvidia temp: 39 C
  Fan Speeds (RPM): N/A gpu: nvidia fan: 33%
Repos:
  Packages: 2981 apt: 2961 flatpak: 20
  Active apt repos in: /etc/apt/sources.list
    1: deb http://www.deb-multimedia.org stable main
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
    1: deb http://packages.linuxmint.com vanessa main upstream import backport
    2: deb http://archive.ubuntu.com/ubuntu jammy main restricted universe multiverse
    3: deb http://archive.ubuntu.com/ubuntu jammy-updates main restricted universe multiverse
    4: deb http://archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
    5: deb http://security.ubuntu.com/ubuntu/ jammy-security main restricted universe multiverse
  Active apt repos in: /etc/apt/sources.list.d/protonvpn-stable.list
    1: deb [signed-by=/usr/share/keyrings/protonvpn-stable-archive-keyring.gpg] https://repo.protonvpn.com/debian stable main
Info:
  Processes: 231 Uptime: 3h 6m wakeups: 0
  Init: systemd v: 249 runlevel: 5 Compilers:
  gcc: 11.3.0 alt: 11 Shell: Bash v: 5.1.16
  running-in: gnome-terminal inxi: 3.3.13

for opentoonz

Code: Select all

flatpak run io.github.OpenToonz
Gtk-Message: 22:47:30.347: Failed to load module "xapp-gtk3-module"
Qt: Session management error: Could not open network socket
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize -1, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::NoProfile)
No XVisualInfo for format QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize -1, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::NoProfile)
Falling back to using screens root_visual.
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize -1, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::NoProfile)
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize -1, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::NoProfile)
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 2.0, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize -1, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize -1, samples -1, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::NoProfile)
Could not initialize GLX

for natron

Code: Select all

flatpak run fr.natron.Natron
Natron Version 2.4.3
(C) 2018-2022 The Natron developers
(C) 2013-2018 INRIA and Alexandre Gauthier-Foichat
>>>Use the --help or -h option to print usage.<<<

for enve

Code: Select all

22:49:20.922: Failed to load module "xapp-gtk3-module"
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 3.3, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 0, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize 0, samples 0, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::CoreProfile)
qt.glx: qglx_findConfig: Failed to finding matching FBConfig for QSurfaceFormat(version 3.3, options QFlags<QSurfaceFormat::FormatOption>(), depthBufferSize 0, redBufferSize 1, greenBufferSize 1, blueBufferSize 1, alphaBufferSize -1, stencilBufferSize 0, samples 0, swapBehavior QSurfaceFormat::SingleBuffer, swapInterval 1, colorSpace QSurfaceFormat::DefaultColorSpace, profile  QSurfaceFormat::CoreProfile)
Could not initialize GLX

[shin23]

Hi,

I can't help you directly with your problem, but I can give you a link to a flatpak tutorial I wrote:
viewtopic.php?f=42&t=368501

The 1st generic advice is to update your flatpak installation:
- flatpak framework: by adding flatpak stable PPA (see tutorial)
- installed programs and runtimes: flatpak update in a terminal; then Update Manager / Edition / Preferences / Automation and slide the cursor to have automatic flatpak updates.

Then you can try to repair your installation: flatpak repair

Finally, if you still get problems, post the error messages you get when launching your apps in a terminal, but don't forget to precise to what app the error messages correspond.

Regards,

MN

hello mikenovember thank you so much for answering
i've done both
but still cant open flatpak applications.. i've listed every error asked on previous reply to spamegg

[spamegg]

Try

Code: Select all

apt reinstall gir1.2-xapp-1.0

also

Code: Select all

apt install xapp

[MikeNovember]

hello mikenovember thank you so much for answering
i've done both
but still cant open flatpak applications.. i've listed every error asked on previous reply to spamegg

Hi,

"Failed to load module "xapp-gtk3-module" is a general error, without any consequence, that arrives systematically at each flatpak launch.

When you launch your apps in terminal, you just launch them with "flatpak run appname". Installed flatpak apps, when launched from the menu, are generally launched with more arguments; in the menu select the launcher, right click / properties and you will see the complete command used: copy it and use it in terminal, then copy again the error messages.

Did you update your flatpak framework with flatpak stable PPA? what is your flatpak version (output of flatpak --version)?

You could also try to uninstall your flatpak apps "flatpak uninstall appname" and associated runtimes if proposed; then install again "flatpak install appname.

Regards,

MN

[shin23]

hello mikenovember thank you so much for answering
i've done both
but still cant open flatpak applications.. i've listed every error asked on previous reply to spamegg

Hi,

"Failed to load module "xapp-gtk3-module" is a general error, without any consequence, that arrives systematically at each flatpak launch.

When you launch your apps in terminal, you just launch them with "flatpak run appname". Installed flatpak apps, when launched from the menu, are generally launched with more arguments; in the menu select the launcher, right click / properties and you will see the complete command used: copy it and use it in terminal, then copy again the error messages.

Did you update your flatpak framework with flatpak stable PPA? what is your flatpak version (output of flatpak --version)?

You could also try to uninstall your flatpak apps "flatpak uninstall appname" and associated runtimes if proposed; then install again "flatpak install appname.

Regards,

MN

in the menu when i right click the launcher, options shown are
add to panel
add to dekstop
add to favorites
uninstall

my flatpak version is
Flatpak 1.12.7

i've install and uninstalled it a few times already, if this doesnt work idk what to do man im new to linux

[shin23]

Try

Code: Select all

apt reinstall gir1.2-xapp-1.0

also

Code: Select all

apt install xapp

apt reinstall girl.2-xapp-1.0
Couldn't find any package whose name or description matched "girl.2-xapp-1.0"
Unable to apply some actions, aborting

apt install xapp
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
xapp : Depends: libxapp1 (= 2.2.8-1) but 2.2.15+vanessa is to be installed

[spamegg]

Notice it's not "girl" but it's "gir1" with the number 1, not the letter l.

Simply copy/paste this: apt reinstall gir1.2-xapp-1.0

[MikeNovember]

in the menu when i right click the launcher, options shown are
add to panel
add to dekstop
add to favorites
uninstall

Hi,
In my menu (Mate), I have an option "Edit properties" and, when I select it, I can see the full launch command.

my flatpak version is
Flatpak 1.12.7

So, you didn't update your flatpak framework (latest version is 1.14.1).
In a terminal:

Code: Select all

sudo add-apt-repository ppa:flatpak/stable

Then in the update manager actualize the lists of packages; it will propose you to update flatpak framework (flatpak, gir1.2-flatpak-1.0, libflatpak0, libostree-1-1, xdg-dbus-proxy, xdg-desktop-portal).
If the update manager proposes you other files, accept it, make a complete update of your system.
This done, you can add flathub to your remote sources:

Code: Select all

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

(This will allow you to search / install / uninstall from the terminal).

i've install and uninstalled it a few times already, if this doesnt work idk what to do man im new to linux

We are going to do a full uninstall and install:

Code: Select all

flatpak uninstall io.github.maurycyliebner.enve
flatpak uninstall fr.natron.Natron
flatpak uninstall io.github.OpenToonz
flatpak uninstall --unused
flatpak repair

Flatpak repair will test that, if any, remaining flatpak installation is OK.
Then launch your file manager, go to your home, type "CTRL+H" to see the hidden files and directories. We are going to delete the configuration directories of your non-working flatpaks.
Open "/.var/app" directory. Delete the following directories: "io.github.maurycyliebner.enve", "fr.natron.Natron", "io.github.OpenToonz".
Now we can install again the flatpaks:

Code: Select all

flatpak install io.github.maurycyliebner.enve
flatpak install fr.natron.Natron
flatpak install io.github.OpenToonz
flatpak repair

When installing a flatpak, accept all and answer Y (yes) to all proposals.
Your flatpaks installation is now OK; launch your flatpaks from your menu. They should work. If not, there is a problem in your system, and I don't know how to further help you.
I see that you have in your repositories "http://www.deb-multimedia.org/"; this repository is intended for various Debian versions, and not for Ubuntu 22.04 (on which Linux Mint 21 is based). This is also the case for "https://repo.protonvpn.com/debian". The use of these repositories might have broken some of your system libraries.

Regards,

MN

[shin23]

Notice it's not "girl" but it's "gir1" with the number 1, not the letter l.

Simply copy/paste this: apt reinstall gir1.2-xapp-1.0

oh sorry haha
i've tried that and it doesnt solve it
it returns some error, like some 6 app cant be upgradable or something.
thank you so much for your help, i've found tahoma 2d that has similar tool to opentoonz, and it can be opened in appimage

im scared to continue that it will break my pc, if it breaks i dont have the money to buy a new one.
thanks again..i learned a lot of things from you...

[shin23]

in the menu when i right click the launcher, options shown are
add to panel
add to dekstop
add to favorites
uninstall

Hi,
In my menu (Mate), I have an option "Edit properties" and, when I select it, I can see the full launch command.

my flatpak version is
Flatpak 1.12.7

So, you didn't update your flatpak framework (latest version is 1.14.1).
In a terminal:

Code: Select all

sudo add-apt-repository ppa:flatpak/stable

Then in the update manager actualize the lists of packages; it will propose you to update flatpak framework (flatpak, gir1.2-flatpak-1.0, libflatpak0, libostree-1-1, xdg-dbus-proxy, xdg-desktop-portal).
If the update manager proposes you other files, accept it, make a complete update of your system.
This done, you can add flathub to your remote sources:

Code: Select all

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

(This will allow you to search / install / uninstall from the terminal).

i've install and uninstalled it a few times already, if this doesnt work idk what to do man im new to linux

We are going to do a full uninstall and install:

Code: Select all

flatpak uninstall io.github.maurycyliebner.enve
flatpak uninstall fr.natron.Natron
flatpak uninstall io.github.OpenToonz
flatpak uninstall --unused
flatpak repair

Flatpak repair will test that, if any, remaining flatpak installation is OK.
Then launch your file manager, go to your home, type "CTRL+H" to see the hidden files and directories. We are going to delete the configuration directories of your non-working flatpaks.
Open "/.var/app" directory. Delete the following directories: "io.github.maurycyliebner.enve", "fr.natron.Natron", "io.github.OpenToonz".
Now we can install again the flatpaks:

Code: Select all

flatpak install io.github.maurycyliebner.enve
flatpak install fr.natron.Natron
flatpak install io.github.OpenToonz
flatpak repair

When installing a flatpak, accept all and answer Y (yes) to all proposals.
Your flatpaks installation is now OK; launch your flatpaks from your menu. They should work. If not, there is a problem in your system, and I don't know how to further help you.
I see that you have in your repositories "http://www.deb-multimedia.org/"; this repository is intended for various Debian versions, and not for Ubuntu 22.04 (on which Linux Mint 21 is based). This is also the case for "https://repo.protonvpn.com/debian". The use of these repositories might have broken some of your system libraries.

Regards,

MN

woah that looks difficult..
i have updated it and it stayed on the 12 version...
thank you for your help, i have found tahoma 2d that works similarly like opentoonz, i think im just going to uninstall all flatpak afterall..
youre right though i have not used proton vpn yet, guess im going to uninstall it
thanks again for your help..

[spamegg]

it returns some error, like some 6 app cant be upgradable or something.

Could you copy/paste the error message? That error message could mean that your package system is already broken.

Anyway, it seems like you found some other solution to your issue? Is your problem solved?

[shin23]

it returns some error, like some 6 app cant be upgradable or something.

Could you copy/paste the error message? That error message could mean that your package system is already broken.

Anyway, it seems like you found some other solution to your issue? Is your problem solved?

i exited the terminal without copying the error
after i uninstalled all flatpak applications, i tried it again and this is the result
apt reinstall gir1.2-xapp-1.0
[sudo] password for shin:
The following packages will be REINSTALLED:
gir1.2-xapp-1.0
0 packages upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 148 not upgraded.
Need to get 0 B/18,1 kB of archives. After unpacking 0 B will be used.
(Reading database ... 438199 files and directories currently installed.)
Preparing to unpack .../gir1.2-xapp-1.0_2.2.15+vanessa_amd64.deb ...
Unpacking gir1.2-xapp-1.0 (2.2.15+vanessa) over (2.2.15+vanessa) ...
Setting up gir1.2-xapp-1.0 (2.2.15+vanessa) ...

the problem is kinda solved...i was looking for plastic mesh function from these applications..helps a lot with standstill animations
and i found tahoma 2d that is appimage based, it can run on my pc..no problem..

[spamegg]

I'm glad things worked out.

148 not upgraded

You should probably get those upgrades for your system's security.

[MikeNovember]

0 packages upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 148 not upgraded.

Hi,

148 not upgraded + the use of two incompatible repositories = system is broken (debian repositories have replaced some Ubuntu system libraries by some not compatible). As I wrote :

I see that you have in your repositories "http://www.deb-multimedia.org/"; this repository is intended for various Debian versions, and not for Ubuntu 22.04 (on which Linux Mint 21 is based). This is also the case for "https://repo.protonvpn.com/debian". The use of these repositories might have broken some of your system libraries.

My advice is a full reinstall, from scratch or from system backup / snapshot made BEFORE the installation of "www.deb-multimedia.org" and "repo.protonvpn.com/debian" repositories.

And, of course, to NOT reinstall these repositories.

Regards,

MN

[shin23]

hello Mike

after the last time i've consulted all sorts of things here, i uninstalled everything and gave up.
and then i tried installing opentoonz again the next day, and it miraculously installed properly.

i checked again today and it is still can be opened. dunno what happened but the problem is somehow fixed. thanks for everyones help on this forum