I might be dense but it didn't help here:
trifid@AB350N:~$ sudo apt update
Hit:1
security.ubuntu.com/ubuntu disco-security InRelease
Hit:2
de.archive.ubuntu.com/ubuntu disco InRelease
Hit:3
ppa.launchpad.net/mutlaqja/indinightly/ubuntu disco InRelease
Hit:4
de.archive.ubuntu.com/ubuntu disco-updates InRelease
Hit:5
de.archive.ubuntu.com/ubuntu disco-backports InRelease
Hit:6
ppa.launchpad.net/mutlaqja/libgphoto2/ubuntu disco InRelease
Reading package lists... Done
Building dependency tree
Reading state information... Done
1 package can be upgraded. Run 'apt list --upgradable' to see it.
trifid@AB350N:~$ sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
indi-mi
1 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
Need to get 0 B/52,1 kB of archives.
After this operation, 108 kB of additional disk space will be used.
Do you want to continue? [J/n] j
(Reading database ... 300926 files and directories currently installed.)
Preparing to unpack .../indi-mi_1.7-0~202002070858~ubuntu19.04.1_amd64.deb ...
Unpacking indi-mi (1.7-0~202002070858~ubuntu19.04.1) over (1.6-0~202002051653~ubuntu19.04.1) ...
dpkg: error processing archive /var/cache/apt/archives/indi-mi_1.7-0~202002070858~ubuntu19.04.1_amd64.deb (--unpack):
trying to overwrite '/lib/udev/rules.d/99-miccd.rules', which is also in package libmicam 1.0~202002070900~ubuntu19.04.1
Errors were encountered while processing:
/var/cache/apt/archives/indi-mi_1.7-0~202002070858~ubuntu19.04.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
trifid@AB350N:~$ sudo apt --fix-broken install
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 to upgrade, 0 to newly install, 0 to remove and 1 not to upgrade.
trifid@AB350N:~$ sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
indi-mi
1 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
Need to get 0 B/52,1 kB of archives.
After this operation, 108 kB of additional disk space will be used.
Do you want to continue? [J/n] j
(Reading database ... 300926 files and directories currently installed.)
Preparing to unpack .../indi-mi_1.7-0~202002070858~ubuntu19.04.1_amd64.deb ...
Unpacking indi-mi (1.7-0~202002070858~ubuntu19.04.1) over (1.6-0~202002051653~ubuntu19.04.1) ...
dpkg: error processing archive /var/cache/apt/archives/indi-mi_1.7-0~202002070858~ubuntu19.04.1_amd64.deb (--unpack):
trying to overwrite '/lib/udev/rules.d/99-miccd.rules', which is also in package libmicam 1.0~202002070900~ubuntu19.04.1
Errors were encountered while processing:
/var/cache/apt/archives/indi-mi_1.7-0~202002070858~ubuntu19.04.1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
trifid@AB350N:~$
I have no clue how to get rid of it.