Arduino IDE 2.3.3 Appimage problems on Kubuntu 24.04

Development Tools IDE 2.x
1

I have got the Appimage and I try to run it from the file browser as I have in the past. It doesn't start.
Of the eight Appimage programs that I use this and Etcher don't start this way.

I can start these two from the terminal if I append --no-sandbox to the command line,
but I get plenty of this error in the Arduino-IDE startup first:
gbm_wrapper.cc(253)] Failed to export buffer to dma_buf: No such file or directory (2).

Can anybody suggest where I should look for a solution? Ideally I would like to create a menu item to start the program.
Thanks,

2

Create a file named "usr.local.bin.arduino" in /etc/apparmor.d whit this content:

abi <abi/4.0>,
include <tunables/global>
profile arduino /usr/local/bin/arduino-ide* flags=(unconfined) {
  userns,
  include if exists <local/arduino>
}

Copy the arduino-ide_2.3.3_Linux_64bit.AppImage in /usr/local/bin (you need root privileges to do that), reboot and everything should work (at least, it did for me).

Ciao, Ale.

3

Thank you for that. It worked for me.
It also helped that I spelled AppImage with the capital 'I' in the middle too.

Peter M.