I try install, but get error called “用于 python 任务 neon-fs-cleanup 的主脚本文件 /usr/share/calamares/modules/neon-fs-cleanup/main.py 引发了异常。”
I have got the same error message using several Neon iso-s (not tested the today’s one). My experience says, that you can ignore this message. If you look the underlying window, then it says that the installation is ready. Just close the installer and select reboot, remove the live media and start the installed KDE Neon. Or close the installer and repeat the installation - In my case the second installation in the row finished with that error message.
I try reboot, select kde neon, but the screen is black.
Also, the information in underlying window say install failed.
I download the iso file (version October 23) in whole day because my slow Internet connect, it is difficult to try new one.
The “black screen” could be from different reason - eg you have to remove ‘splash’ from the grub kernel parameters line.
Did you try starting the second installation right after the first installation has “failed”?
I try remove “splash” and it work. I don’t know what cause the problem because i noticed the live-cd have splash line but it work well in my physical computer.
I try install it twice in vm, no error after the second install start.
Install twice only work once for me, next try failed again.
I finally modify Python file to just print a word and remove package manual.