What does the above Error mean? What is an installation candidate?
I was trying to do
sudo apt-get install munin-memcached
and I get this message:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package munin-memcached 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 munin-memcached has no installation candidate
I googled for the problem and someone said to do a apt-get upgrade
but it still did not solve my problem.
Best Answer
This happens when you try to install a package about which APT does not have any idea. When you add software sources, you need to do an
apt-get update
so that your system APT's database is updated with all the packages on the repositories listed in the software sources lists.Then when you try to install any package, APT checks the package name in it's database, finds it and checks the name of the repo from where it got it. It then downloads the package from that repo.
This means of all the repositories listed in your software sources, none of them have the package named
munin-memcached
. I checked again and it is not available in official Ubuntu repos.After a bit of googling I found that it is available in this PPA: chris-lea/munin-plugins
Add this PPA and install the packages at your own risk. I do not know this person.
To add the PPA, issue the below command:
To install package
munin-memcached
, issue the below command: