I just moved from Ubuntu to Debian 10, and I haven't been able to install wget. I tried
sudo apt-get install wgetBut recived this message:
This may mean that the package is missing, obsolete or only find available from some other source. The wget package is not available, but some other package references to it. 1 1 Answer
This happens if you boot a live image:
Fix it by running sudo apt update to update package information first.