sudo apt-get install indi-full gsc
...
E: Unable to locate package gsc

sudo apt-get install indi-full

...

The following packages have unmet dependencies:
indi-full : Depends: libindi1 (>= 1. but it is not going to be installed
Depends: indi-bin (>= 1. but it is not going to be installed
Depends: indi-eqmod but it is not going to be installed
Depends: indi-sx but it is not going to be installed
Depends: indi-sbig but it is not going to be installed
Depends: indi-apogee but it is not going to be installed
Depends: indi-gphoto but it is not going to be installed
Depends: indi-qsi but it is not going to be installed
Depends: indi-fishcamp but it is not going to be installed
Depends: indi-maxdomeii but it is not going to be installed
Depends: indi-asi but it is not going to be installed
Depends: indi-aagcloudwatcher but it is not going to be installed
Depends: indi-aagcloudwatcher-ng but it is not going to be installed
Depends: indi-ffmv but it is not going to be installed
Depends: indi-dsi but it is not going to be installed
Depends: indi-qhy but it is not going to be installed
Depends: indi-gpsd but it is not going to be installed
Depends: indi-mi but it is not going to be installed
Depends: indi-duino but it is not going to be installed
Depends: indi-fli but it is not going to be installed
Depends: indi-nexstarevo but it is not going to be installed
Depends: indi-nexdome but it is not going to be installed
Depends: indi-gpsnmea but it is not going to be installed
Depends: indi-armadillo-platypus but it is not going to be installed
Depends: indi-mgen but it is not going to be installed
Depends: indi-shelyak but it is not going to be installed
Depends: indi-nightscape but it is not going to be installed
Depends: indi-toupbase but it is not going to be installed
Depends: indi-atik but it is not going to be installed
Depends: indi-avalon but it is not going to be installed
Depends: indi-starbook but it is not going to be installed
Depends: indi-astromechfoc but it is not going to be installed
Depends: indi-dreamfocuser but it is not going to be installed
Depends: indi-aok but it is not going to be installed
Depends: indi-talon6 but it is not going to be installed
Depends: indi-pentax but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

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