gistfile1.txt

~/Desktop/libpng12$ sudo apt 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:
 transfig : Depends: libpng12-0 (>= 1.2.13-4) but it is not installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
~/Desktop/libpng12$ sudo apt --fix-broken install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  libwine libwine-dev libwine-development-dev
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  libpng12-0
The following NEW packages will be installed:
  libpng12-0
0 upgraded, 1 newly installed, 0 to remove and 5 not upgraded.
1 not fully installed or removed.
Need to get 0 B/116 kB of archives.
After this operation, 285 kB of additional disk space will be used.
Do you want to continue? [Y/n] 
(Reading database ... 378325 files and directories currently installed.)
Preparing to unpack .../libpng12-0_1.2.54-1ubuntu1.1_amd64.deb ...
Unpacking libpng12-0:amd64 (1.2.54-1ubuntu1.1) ...
dpkg: error processing archive /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb (--unpack):
 unable to install new version of '/lib/x86_64-linux-gnu/libpng12.so.0': No such file or directory
No apport report written because the error message indicates an issue on the local system
         Errors were encountered while processing:
 /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
~/Desktop/libpng12$ sudo dpkg -i --force-all /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb
(Reading database ... 378325 files and directories currently installed.)
Preparing to unpack .../libpng12-0_1.2.54-1ubuntu1.1_amd64.deb ...
Unpacking libpng12-0:amd64 (1.2.54-1ubuntu1.1) ...
dpkg: error processing archive /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb (--install):
 unable to install new version of '/lib/x86_64-linux-gnu/libpng12.so.0': No such file or directory
Processing triggers for libc-bin (2.29-0ubuntu2) ...
Errors were encountered while processing:
 /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb
~/Desktop/libpng12$ sudo apt --fix-broken remove
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Correcting dependencies... Done
The following packages were automatically installed and are no longer required:
  libwine libwine-dev libwine-development-dev
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
  libpng12-0
The following NEW packages will be installed:
  libpng12-0
0 upgraded, 1 newly installed, 0 to remove and 5 not upgraded.
1 not fully installed or removed.
Need to get 0 B/116 kB of archives.
After this operation, 285 kB of additional disk space will be used.
Do you want to continue? [Y/n] 
(Reading database ... 378325 files and directories currently installed.)
Preparing to unpack .../libpng12-0_1.2.54-1ubuntu1.1_amd64.deb ...
Unpacking libpng12-0:amd64 (1.2.54-1ubuntu1.1) ...
dpkg: error processing archive /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb (--unpack):
 unable to install new version of '/lib/x86_64-linux-gnu/libpng12.so.0': No such file or directory
No apport report written because the error message indicates an issue on the local system
         Errors were encountered while processing:
 /var/cache/apt/archives/libpng12-0_1.2.54-1ubuntu1.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

of no help:

• https://unix.stackexchange.com/questions/331803/cannot-install-libpng12-0-on-debian
• https://forums.kali.org/showthread.php?42875-Kali-linux-failed-to-get-libpng12-(libpng12-so-0-No-such-file-or-directory)-on-hold
• https://askubuntu.com/questions/141370/how-to-fix-a-broken-package-when-apt-get-install-f-does-not-work
• https://askubuntu.com/questions/176121/dpkg-error-trying-to-overwrite-file-which-is-also-in