Appimage for the Software "Tahoma2D" not working

Akelun

Hello,

I was trying to use a software that I discovered when I was on Windows. Being Open-Source I noticed there was a Linux installer, but only as an AppImage (they're not in the repositories, not in flathub, and I didn't check Snap).

The software is called Tahoma2D. It's supposed to be a more intuitive OpenToonZ (open-source and free 2D animation software used by the studio Ghibli) clone and is available here: https://tahoma2d.org/download.html

However, when I try to open the AppImage, I have that mistake:

(Up: The Appimage file in the Tahoma2D folder, bottom left corner, the Appimage file launched via Konsole (KDE terminal), bottom right, the error message displayed after I try to launch the software).

Does someone have an idea what is wrong and what I could do to fix that, please?

Thanks in advance! ^^

AlphaElwedritsch

Seems not Wayland compatible. Try to start it in x11 environment

alfisya

I can launch it just fine on Gnome Wayland session. It does failed to launch if I force it to run on Wayland using:

QT_QPA_PLATFORM=wayland ./Tahoma2D.AppImage

Try launching it with:

QT_QPA_PLATFORM=xcb ./Tahoma2D.AppImage

Akelun

alfisya Ah damn! That's sad to hear it's because of Wayland... =X
Everything else works so great with Wayland now, I don't want to go back to X11 for just one software. XD

Also, I tried to launch it like you suggest, with
QT_QPA_PLATFORM=xcb ./Tahoma2D.AppImage
but it didn't work. I got the same error message. =/

alfisya

You should try contact the Tahoma devs, it might be a bug. They might appreciate it if file a bug report. Cheers!

Harvey

It works fine if you follow their exact instructions:

Click on the link to download the zipped Tahoma2D directory

Right-click on the zipped file and choose Extract All

Save the Tahoma2D directory in the location of your choice

DO NOT separate the Tahoma2D executable or the tahomastuff folder from the Tahoma2D directory

Open the Tahoma2D directory and find the file called Tahoma2D

Double-click on Tahoma2D to open

I can reproduce the error if I separate the AppImage from the other files in the .tar.gz once extracted.

Made a video of it working properly from within a fresh Solus Plasma session using Wayland. Included an example of how to break the AppImage at the end. (I will probably delete this video later).

Only other way I can reproduce the error is if I launch it in a Wayland session, logout, switch to X11 session and launch it again. In this scenario I had to delete the folder and extract it again to make it work under X11.

Akelun

Harvey I followed their instructions. You can see in the picture I shared my Appimage file is still into the Tahoma2D directory. ^^'

But yes, from everything you all said, it looks like it's a problem with Wayland. But with the last detail you pointed out at the end of your message, I have the feeling that if I start a X11 session, extract the folder (maybe launch the app once as well), then restart with a Wayland session... MAYBE it could work on Wayland...

I'll try that this evening, maybe.

Since I want to stay on Wayland now that everything (except that software I just wanted to try) works better on it with my Solus KDE, I don't wish to use back X11.

Akelun

I just tested what you suggested. I deleted the folder, open the session with X11, extract the .tar.gz, tried to open Tahoma2D.appimage without moving the appimage file, and NOPE, still the same error. =X

I don't know what's happening, but... visibly, Wayland is not the problem for me... Or if it is, I don't know how it influences the software on X11 when I extract it from that session.

Axios

Akelun I just tested this on Solus Budgie worked without issue.

However does this look familiar

When I added plugins it broke,remove plugins and see if it starts may have to go through plugins and find the offending one and go from their.
Or it may be plugins in general for some reason
Other than that I would not know of a fix. (Out in left field for me)

Note: Not sure Opencv is proper maybe one Devs will respond. (Mine is installed tho but not where they want it)

Akelun

But that's what is weird. It's really a basic appimage, no plugins.
I followed the instructions, I didn't install any plugin, I even tried to extract and open the appimage from a X11 session, I indeed have the same error message you received either because of Wayland or because of plugins, but it's an error message I receive by default, whatever I'm trying... ='(

I suppose maybe something, like a package I installed is not compatible with the software, or there is something else happening on my PC, and maybe reinstalling Solus would fix that, but I don't wish to do it. I already set up all my OS, all my DE settings, all my softwares, everything works PERFECTLY... except for that ONE software, and I don't understand why.

Axios

Akelun Interesting.
Well I got it to run without error (with plugins) but I wanted to see if I could duplicate it (deleted everything and started from scratch) now it crashes every time even the nightly build.
Which in my mind dont process correctly at this point. (it being an appimage)
When it was working only saw 2 dir it added in home folder.
Just some info not sure its of any use.
My only other advice would be see what there support says.

craigtoyoracer

Have you tried the latest version ? has some crash fixes.

https://github.com/tahoma2d/tahoma2d/releases

Axios

craigtoyoracer That was my first thought when it stopped working for me
and read the updates.
Its been broke now ever since I tried adding plugins even after deleting everything and new download.

Akelun

craigtoyoracer It is the 1.5.2 version I downloaded, so, yeah. I tried it. =/

And the fact @Axios also experienced a broken application, I guess it's maybe not just my PC the problem. Maybe I should indeed contact the support team of the software.
I think I will do that. Thanks everyone who tried to help.

Of course, if there are other suggestion to fix the error, I'm interested. But for now, I think I will open a ticket and inform the team that the Appimage doesn't work for me and seems to be prone to break with time.

Axios

Akelun See if launching it from terminal works for you?

Axios

Dunno where my brain was it starts fine in terminal even with plugins but wont launch from nemo or
link.
That wasnt root terminal either.

Akelun

Axios I already tried it. Didn't work. XD

Something's cursed for me with that app.

Axios

Akelun Interesting
Going leave it their then.

Axios

Akelun Try this it worked for me used main menu made an entry for it and it launches
without issue.
Use this for menu (Exec = path/to/tahoma/Tahoma2d.AppImage -TAHOMA2DROOT path/to/tahoma/tahomastuff)
If you rename the appimage file to .zip you can extract the Icon to use in the menu entry
But do it in a folder that you can delete not the folder you are using then just copy icon to your working
dir.
It wont fix launching it from file manager but you have a working menu entry hopefully
If it works for you.

Akelun

Axios OH!!! You're right! It worked! =O
OMG!!! Thank you SO much!
I'm going to share your solution on the bug report I wrote as well.
Thanks again! Really!