Fix libc6-dev Breaks libgcc-9-dev < 9.3.0-5 but 9.2.1-8 is to be installed.md

Well, this kind of unmet dependency occurs mostly when you mess around with the sources list.

now, if you're running a stable release of distro and used the unstable sources to install somethin, please add that too. else, some other dependency may occur too.

First things first,

install gcc-8-base by typing sudo apt install gcc-8-base if already installed

install gcc-9-base type-in, sudo apt install gcc-9-base

This will fix it.

at end of the installation if you see something like couldn't configure libc6:amd64 then just reinstall libc6

by typing, apt reinstall libc6