minor change to 'prepare_for_dev_ubuntu.sh'

[TasMania17]

After upgrading to new current Ubuntu 22.04.

Error: Package 'qt5-default' has no installation candidate' Solution: sudo apt-get install qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools

qt5-default has been dropped.

[mclarekin]

comments from facebook member Howdy mandlebulbarians!. Just a heads up. It appears that Ubuntu and some of it's derivative distros like Lubuntu are moving to fuse v3. fuse is an interface for userspace programs to export a filesystem to the Linux kernel. As I use the v2.27 64-bit AppImage, and the newer Lubuntu 22.04 "Jammin' Jellyfish" release, the AppImage won't run unless you use the --extract-filesystem option. Then run "AppRun" from the newly created application folder. Cheers.

Frankly I still run 20.04 on my desktop and just put 22.04 on my lappy. There are still a ton of daily updates going into 22.04 right now so it may be worthwhile to keep your 20.04 running a bit longer. I haven't see much improvement between the 2 releases to warrant replacing 20.04 if it's working well for you. I won't change over to 22.04 on my desktop until long term support ends for it probably. Cheers.

[buddhi1980]

@TasMania17 Will it run if you install qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools instead of qt5-default?

[TasMania17]

Yes compiles and runs well.

AppImages work all the time on Xubuntu 22-04. I made some recently. I found how to convert a DEB file into an AppImage.