Install libsm6-dbg by entering the following commands in the terminal:
sudo apt update sudo apt install libsm6-dbg
Description:
X11 Session Management library (debug package)
This package provides the main interface to the X11 Session Management library, which allows for applications to both manage sessions, and make use of session managers to save and restore their state for later use. . This package contains the debug versions of the library found in libsm6. Non-developers likely have little use for this package. . More information about X.Org can be found at:
Version: 2:1.2.2-1
Section: libdevel