Не получается установить gcc, вот что выдает:

root@Varlamov-PC:~# sudo apt-get install gcc sudo: unable to resolve host Varlamov-PC: Temporary failure in name resolution Reading package lists… Done Building dependency tree… Done Reading state information… Done Package gcc 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 However the following packages replace it: gcc-13-doc

E: Package ‘gcc’ has no installation candidate root@Varlamov-PC:~#