Install lib32stdc++6-6-dbg by entering the following commands in the terminal:
sudo apt update sudo apt install lib32stdc++6-6-dbg
Description:
GNU Standard C++ Library v3 (debugging files)
This package contains the shared library of libstdc++ compiled with debugging symbols.
Homepage: http://gcc.gnu.org/
Version: 6.4.0-17ubuntu1
Section: universe/debug