This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-install-g-the-c-compiler-on-ubuntu-20-04-lts-focal-fossa-linux
i am facing this type of problem for installing gcc
sudo apt install build-essential
Reading package lists… Done
Building dependency tree
Reading state information… Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
build-essential : Depends: gcc (>= 4:9.2) but 4:7.4.0-1ubuntu2.3 is to be installed
Depends: g++ (>= 4:9.2) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
Welcome to our forums.
Your problem may be related to the recent release of this major version, which cause many changes in the repositories. Try to clean your
$ sudo apt clean
And re-run the installation command. Let us know it that works for you.