Many Thanks ts101, it works ! [B-)]

I confirm "ulimit -n 10000" seems to affect only the shell environment in which the command is run.
Indeed, closing the shell where Sweethome 3d was successfully launched, and reopening a new one without running "ulimit -n 10000", leads to the same error ...

Hi
After a fresh install of Ubuntu 24.10, and download and install of SweetHome3D-7.5-linux-x64, I got this error :
./SweetHome3D
library initialization failed - unable to allocate file descriptor table - out of memoryAbandon (core dumped)
The same problem occurs with the snap version of ...