ready-for.sh + Ubuntu 20.04.3 LTS = libc6 is too new?

Hi,

I am trying to check my set-up with ready-for.sh [1] on Ubuntu 20.04.3 LTS [2] and I am getting the following error [3]:

 libc6-dev : Depends: libc6 (= 2.31-0ubuntu9.2) but 2.31-0ubuntu9.3 is to be installed

Any idea how to fix this? Or the script should be fixed?

Cheers,
Ivan

[1] # ./ready-for.sh -V
8.34
[2] # lsb_release -d
Description: Ubuntu 20.04.3 LTS
[3] # ./ready-for.sh --install LFS201

Checking that this computer is suitable for LFS201: Essentials of Linux System Administration

PASS: CPU architecture is x86_64
PASS: 12 core CPU
PASS: Your CPU appears powerful enough (currently at 64788 BogoMIPS cumulatively)
PASS: 15 GiB RAM
PASS: 762 GiB free disk space in /home/glushkov
PASS: 780439 MiB free disk space in /boot

NOTE: Currently running Ubuntu 20.04.3 LTS (supported)

NOTE: This is only a simulation!
apt-get needs root privileges for real execution.
Keep also in mind that locking is deactivated,
so don't depend on the relevance to the real current situation!
Reading package lists... Done
Building dependency tree
Reading state information... Done
bridge-utils is already the newest version (1.6-2ubuntu1).
bzip2 is already the newest version (1.0.8-2).
bzip2 set to manually installed.
file is already the newest version (1:5.38-4).
file set to manually installed.
gzip is already the newest version (1.10-0ubuntu4).
iputils-ping is already the newest version (3:20190709-3).
iputils-ping set to manually installed.
ltrace is already the newest version (0.7.3-6.1ubuntu1).
ltrace set to manually installed.
lvm2 is already the newest version (2.03.07-1ubuntu1).
lvm2 set to manually installed.
make is already the newest version (4.2.1-1.2).
make set to manually installed.
manpages is already the newest version (5.05-1).
manpages set to manually installed.
mlocate is already the newest version (0.26-3ubuntu3).
nano is already the newest version (4.8-1ubuntu1).
nano set to manually installed.
net-tools is already the newest version (1.60+git20180626.aebd88e-1ubuntu1).
patch is already the newest version (2.7.6-6).
patch set to manually installed.
psmisc is already the newest version (23.3-1).
psmisc set to manually installed.
unzip is already the newest version (6.0-25ubuntu1).
unzip set to manually installed.
zip is already the newest version (3.0-11build1).
zip set to manually installed.
virt-viewer is already the newest version (7.0-2build1).
curl is already the newest version (7.68.0-1ubuntu2.7).
gdb is already the newest version (9.2-0ubuntu1~20.04).
gdb set to manually installed.
git is already the newest version (1:2.25.1-1ubuntu3.2).
gnupg is already the newest version (2.2.19-3ubuntu2.1).
gnupg set to manually installed.
libvirt-clients is already the newest version (6.0.0-0ubuntu8.15).
libvirt-daemon-system is already the newest version (6.0.0-0ubuntu8.15).
memtest86+ is already the newest version (5.01-3.1ubuntu2.1).
memtest86+ set to manually installed.
qemu-kvm is already the newest version (1:4.2-3ubuntu6.18).
qemu-utils is already the newest version (1:4.2-3ubuntu6.18).
qemu-utils set to manually installed.
rsync is already the newest version (3.1.3-8ubuntu0.1).
rsync set to manually installed.
strace is already the newest version (5.5-3ubuntu1).
strace set to manually installed.
sudo is already the newest version (1.8.31-1ubuntu1.2).
sudo set to manually installed.
tar is already the newest version (1.30+dfsg-7ubuntu0.20.04.1).
tar set to manually installed.
wget is already the newest version (1.20.3-1ubuntu2).
wget set to manually installed.
xz-utils is already the newest version (5.2.4-1ublibc6-dev : Depends: libc6 (= 2.31-0ubuntu9.2) but 2.31-0ubuntu9.3 is to be installed
untu1).
xz-utils set to manually installed.
virt-manager is already the newest version (1:2.2.1-3ubuntu2.1).
virtinst is already the newest version (1:2.2.1-3ubuntu2.1).
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
libc6-dev : Depends: libc6 (= 2.31-0ubuntu9.2) but 2.31-0ubuntu9.3 is to be installed
E: Unable to correct problems, you have held broken packages.
E: Unable to install package list, or your packaging system is in an inconsistent state
Terminated