The linux thread

keszegh · August 2023

I thought linux support deserves its own thread.

keszegh · August 2023

So i've tested 2023.08 export from windows linux projects and running on my linux i get only the following error and nothing else:
"There was an error launching the application."
i tried different projects, encrypted or not. require and json plugins were used.
on linux mint 20.3 cinnamon

keszegh · August 2023

cont'd:
gideros studio and gideros player runs on my linux. tried to export bird animation example from linux gideros studio and when trying to run this export i get the same error as before ("There was an error...").
also when exporting from linux, the first line of the log was red and is as follows:
"Tools/gdrexport: /lib/x86_64-linux-gnu/libproxy.so.1: no version information available (required by ./linQt6Network.so.6)"

hgy29 · August 2023

I've never seen such a non informative message on Linux when launching an app. Can you try to launch it from a terminal, if that's not what you already did ? If the error persist, the best way to diagnose is to use strace to record linux calls from the app. You can run

strace -o strace.log YourApp

from a terminal, and post both the strace.log file and the output of the app itself here for analysis.

keszegh · August 2023

hgy29 said:
I've never seen such a non informative message on Linux when launching an app. Can you try to launch it from a terminal, if that's not what you already did ? If the error persist, the best way to diagnose is to use strace to record linux calls from the app. You can run
strace -o strace.log YourApp
from a terminal, and post both the strace.log file and the output of the app itself here for analysis.

sorry for noob questions, i don't have much linux experience. what should be YourApp?
i've exported Button app and then i have the Button.desktop file in the Button folder which seems to be runnable (that's the one which gives the above error message)
but in terminal if i'm in the Button directory and i run
"strace -o strace.log Button.desktop"
then i get a "No such file or directory" message.

keszegh · August 2023

now i tried "strace -o strace.log ./Button.desktop" and then i get "strace:exec: Permission denied"

hgy29 · August 2023

The executable should be called Button, the .desktop file is a description file for integration in Linux desktop

keszegh · August 2023

hgy29 said:
The executable should be called Button, the .desktop file is a description file for integration in Linux desktop

interesting, for Button it does ask me to find an app to run it with. for Button.desktop it 'runs' it and adds "There was an error launching the application." (no wonder the short message)

now i tried "strace -o strace.log ./Button" and i again get "strace:exec: Permission denied".
same for "sudo strace -o strace.log ./Button"

keszegh · August 2023

i needed to run "chmod a+x Button" and now "./Button" runs the app!!
(can gideros add executable flag automatically?)

keszegh · August 2023

my app runs finally, amazing.

comments:
1. set fullscreen does not work
2. screen.new crashes the app
from the log actually setTitle is the one which crashes, perhaps screen is ok in itself, i did not test separately
setSize also crashes

actually these seem to work in player on linux but not in the exported app.

hgy29 · August 2023

keszegh said:
i needed to run "chmod a+x Button" and now "./Button" runs the app!!
(can gideros add executable flag automatically?)

I’ll have look, I didn’t need to make it executable in my tests.

hgy29 · August 2023

keszegh said:

2. screen.new crashes the app

Yes, as I said here: https://forum.gideros.rocks/discussion/comment/68356/#Comment_68356

hgy29 · August 2023

I didn’t implement setFullScreen either, I forgot!

keszegh · August 2023

i see. i don't care about native dialogs but screen would be necessary for my app, so thanks in advance if you manage to add it.

keszegh · August 2023

btw you mentioned qt/non-qt version of linux export but i see only one so far.

hgy29 · August 2023

Yes I merged windows desktop and Mac desktop exports into a single QT export tab, on which you’ll see a sub platform drop-down list to choose between windows, Mac, and now linux

hgy29 · August 2023

For next release: https://github.com/gideros/gideros/commit/65b8903d48a19de7a418701a3261a189a00a6605

keszegh · September 2023

@hgy29 , so i've tested 2023.09 version with your separately provided midi plugin. the linux export can do these that before did not work: fullscreen, projection window, midi plugin. so it is perfect. for my usecase only wacom support is missing.

i also exported a qt-linux project, it did not run instead had the following error message in the terminal:
error while loading shared libraries: libQt6DBus.so.6: cannot open shared object file: No such file or directory

thanks for the amazing work on the linux export!

keszegh · September 2023

one question: what's returned on linux for getDeviceInfo? it seems to me that nothing. that should be corrected and also the result added here: https://wiki.gideros.rocks/index.php/Application:getDeviceInfo

hgy29 · September 2023

keszegh said:
one question: what's returned on linux for getDeviceInfo? it seems to me that nothing. that should be corrected and also the result added here: https://wiki.gideros.rocks/index.php/Application:getDeviceInfo

It should already return "Linux" for first result, and it should further return the linux 'release', 'version', and 'machine' as returned by uname() call (https://man7.org/linux/man-pages/man2/uname.2.html).

keszegh · September 2023

hgy29 said:

keszegh said:
one question: what's returned on linux for getDeviceInfo? it seems to me that nothing. that should be corrected and also the result added here: https://wiki.gideros.rocks/index.php/Application:getDeviceInfo
It should already return "Linux" for first result, and it should further return the linux 'release', 'version', and 'machine' as returned by uname() call (https://man7.org/linux/man-pages/man2/uname.2.html).

you are right. i just tried it in linux gideros studio running in a gideros player and then there is no output for getdeviceinfo. but on exported project indeed there is.

hgy29 · September 2023

And you were right too: on the standard Player and on QT export (same code base), nothing was reported for linux. I'll add it as "QtLinux"

Howdy, Stranger!

Categories

In this Discussion

Top Posters

The linux thread

Comments

Howdy, Stranger!

Quick Links

Categories

In this Discussion

Top Posters

The linux thread

Comments