unmet dependency problem while upgrading Ubuntu

[Naman Nimmo]

Hey Ubuntu maintainers!

I'm trying to upgrade my Ubuntu version 20.04.2 LTS to 20.10 so that I
could finally upgrade it to 21.04 (Hirsute Hippo)

Once I run the  upgrade  command, I get this unmet dependency error:

$ sudo apt-get upgrade

Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
 libsmbclient : Depends: samba-libs (= 2:4.11.6+dfsg-0ubuntu1.8) but
2:4.11.6+dfsg-0ubuntu1.6 is installed
 samba-libs : Depends: libwbclient0 (= 2:4.11.6+dfsg-0ubuntu1.6) but
2:4.11.6+dfsg-0ubuntu1.8 is installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or
specify a solution).



I tried  sudo apt --fix-broken install  but did not work and return this
error:

$ sudo apt --fix-broken install

Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following package was automatically installed and is no longer required:
  libllvm10
Use 'sudo apt autoremove' to remove it.
The following additional packages will be installed:
  samba-libs
The following packages will be upgraded:
  samba-libs
1 upgraded, 0 newly installed, 0 to remove and 25 not upgraded.
1 not fully installed or removed.
Need to get 0 B/5,282 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
E: Invalid archive member header
E: Prior errors apply to
/var/cache/apt/archives/samba-libs_2%3a4.11.6+dfsg-0ubuntu1.8_amd64.deb
debconf: apt-extracttemplates failed: No such file or directory
(Reading database ... 215241 files and directories currently installed.)
Preparing to unpack .../samba-libs_2%3a4.11.6+dfsg-0ubuntu1.8_amd64.deb ...
Unpacking libwbclient0:amd64 (2:4.11.6+dfsg-0ubuntu1.8) over
(2:4.11.6+dfsg-0ubuntu1.8) ...
Setting up libwbclient0:amd64 (2:4.11.6+dfsg-0ubuntu1.8) ...
dpkg: dependency problems prevent configuration of libsmbclient:amd64:
 libsmbclient:amd64 depends on samba-libs (= 2:4.11.6+dfsg-0ubuntu1.8);
however:
  Version of samba-libs:amd64 on system is 2:4.11.6+dfsg-0ubuntu1.6.

dpkg: error processing package libsmbclient:amd64 (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup
error from a previous failure.

                              Processing triggers for
libc-bin (2.31-0ubuntu9.2) ...
Errors were encountered while processing:
 libsmbclient:amd64
E: Sub-process /usr/bin/dpkg returned an error code (1)



I want to eventually run sudo do-release-upgrade but before that, I have to
install all available updates for the release.

I also tried downgrading libwbclient0 using sudo apt-get install
libwbclient0=2:4.11.6+dfsg-0ubuntu1.6 but it gives this error:

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Version '2:4.11.6+dfsg-0ubuntu1.6' for 'libwbclient0' was not found


Cleaning out the apt-cache before downgrading also doesn't help.

How further to proceed? Thanks in advance!

Regards,

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