I concur, the same is happening also for Ubuntu 20.04.3 LTS on an Odroid C4 board.
root@heidenrod-obs:~# apt-get install indi-full libchromaprint1 libsdl2-2.0-0
Reading package lists... Done
Building dependency tree
Reading state information... Done
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:
indi-full : Depends: indi-playerone but it is not installable
libchromaprint1 : Depends: libavcodec58 (>= 7:4.0)
Depends: libavutil56 (>= 7:4.0) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
Kstars Mac osx
Odroid C4 / WO Redcat51 / CEM25p / ZWO533MC / QHY5L-II-M (OAG)
I got the same problem when building indi-3rdparty from source on an ODroid C4 (Ubuntu Mate 20.04).
Looking at the CMakeLists.txt, I found o I cut thatould disable the build for 'playerone' by setting the "option(WITH_PLAYERONE "Install Player One Astronomy's Camera Driver" On)" line to 'Off', thus getting rid of the error.
Not useful for those updating through standard update procedure but at least there is a workaround.
Well ..... I don't really care about what Player One says/does. I don't have a playerone and don't need one. If there is no support for PlayerOne on Arm that should not block the deployment.
But no need to hurry. Started using my windows machine again.