From time to time, package dependencies change. When that happens, a new package might need to be installed and another removed. This can cause the error message:
The following packages have been kept back:
When this happens, the answer is very simple: just install the packages that were kept back.
For example, if you get the message
The following packages have been kept back: foo bar bam
then, install the kept-back packages:
sudo apt install foo bar bam
8 / 2022