Install libapparmor-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libapparmor-dev
Description:
AppArmor development libraries and header files
libapparmor-dev provides the development libraries and header files needed to link against the AppArmor changehat and log parsing functions. Also includes the manpages for library functions.
Homepage: http://apparmor.net/
Version: 2.12-4ubuntu5
Section: libdevel