Install libgio2.0-cil-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libgio2.0-cil-dev
Description:
CLI binding for the GIO I/O stack 2.22
This package provides the gio-sharp assembly that allows CLI (.NET) programs to use the GIO I/O stack 2.22. . This package contains development files for the gio-sharp library, and should be used for compilation.
Homepage: http://gitorious.org/gio-sharp
Version: 2.22.3-3
Section: universe/cli-mono