about error "cat: /etc/X11/default-display-manager: No such file or directory"

[Septemberrrrrr]

Checking if the /home/remastersys folder has already been created.

Copying /var and /etc to temporary area and deleting extra files.



Setting up Live CD options for mode backup.
update-initramfs: Generating /boot/initrd.img-5.4.0-165-generic
live-boot: core filesystems devices utils memdisk udev blockdev iscsi dns.

Copying your kernel and initrd to the Live CD.

Creating filesystem.squashfs. It will take a while, so be patient...

Parallel mksquashfs: Using 4 processors
Creating 4.0 filesystem on /home/remastersys/ISOTMP/live/filesystem.squashfs, block size 1048576.
[=================================================/                                                         ] 191627/413782  46%
real	12m44.480s
user	30m27.355s
sys	2m37.102s
cat: /etc/X11/default-display-manager: No such file or directory
The CD file system is missing. Either there was a problem creating the compressed file system, or you are trying to run the command "remastersys dist iso" before "remastersys dist cdfs".

The above log is generated by running the remastersys backup command, I made sure that I got the server without the GUI installed, but the log contains "cat: /etc/X11/default-display-manager: No such file or directory ", I'm not sure if it's my operation or the app itself.I'd appreciate it if you could confirm that for me.