I am getting the following error message, while doing it. Could you please help me?

:~$ sudo apt-get install manpages manpages-dev
Reading package lists… Done
Building dependency tree
Reading state information… Done
manpages is already the newest version.
Package manpages-dev 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 manpages-dev has no installation candidate
~$

Thanks,