I have recently updated the OS on my Pi to Raspbian Stretch and having problems setting up the watchdog. Namely when I try to download the package I get the following error message:
$ sudo apt-get install watchdog Reading package lists... Done Building dependency tree Reading state information... Done Package watchdog is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'watchdog' has no installation candidate
Why can't apt-get find the package?