My dotfiles
To run the C/C++ lsp is needed the latest version of libstdc/libstdc++(version here) and libstdc/libstdc++(version here)-devel.
In order to achieve this, you can search in your OS. I use openSuse so it's something like:
rpm -qa | grep c++
And see which version is installed and try find a newer one if nothings works
ls /usr/include/c++/
//13 14 15