#include <GL/freeglut.h>

Hey, whilst trying to run the tutorials (depth sensing or spatial mapping) I always get the error in the following line:
#include <GL/freeglut.h>

Fehler (aktiv) E1696 Die Datei “Quelle” kann nicht geöffnet werden: “GL/freeglut.h”. ZED_Point_Cloud_Mapping C:\Users…\Downloads\zed-examples-master\zed-examples-master\spatial mapping\advanced point cloud mapping\cpp\include\GLViewer.hpp 11

Hello and thank you for reaching out to us.

You should run

sudo apt install freeglut3-dev