Problem with compileOF.sh

Hi!
I am new to C++ and openFrameworks and have some problems setting everything up. Basically I follow the instructions on https://openframeworks.cc/setup/linux-install/. When I try to run the script compileOF.sh I get the following error message:

openFrameworks/libs/openFrameworks/utils/ofConstants.h:211:12: fatal error: GL/glew.h: No such file or directory
   #include <GL/glew.h>

My GL files are located here:

ls /usr/include/GL
freeglut_ext.h  freeglut_std.h  glew.h   gl.h         glu.h         glut.h   glxext.h  glxint.h      glxmd.h     glxtokens.h  wglew.h
freeglut.h      glcorearb.h     glext.h  gl_mangle.h  glu_mangle.h  glxew.h  glx.h     glx_mangle.h  glxproto.h

I run on Ubuntu 16.04. What should I do?
Any help would be appreciated! Thanks!

glew.h should be provided by libglew-dev (https://packages.ubuntu.com/xenial/libglew-dev)
It’s installed in your system? What dpkg -l libglew-dev returns?

Thanks for your reply! It returns:

dpkg -l libglew-dev
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
ii  libglew-dev:am 1.13.0-2     amd64        OpenGL Extension Wrangler - devel

What do you think is the problem?

it seems correctly installed, so the problem is probably elsewhere. Could you post the whole output you get? Or at least a significant part of it