ofxGui.h not found

Hello all!
I am a newbie to OF and I am using a Linux system (Kubuntu 15.04).

I downloaded the latest stable build (code::blocks 64-bit) from openframeworks.cc and ran all the scripts to install all dependencies. Then, in the directory /of_v0.8.4_linux64_release/apps/projectGenerator/projectGeneratorSimple, I ran

make

And I got the following error:

In file included from src/testApp.cpp:1:0:
src/testApp.h:12:20: fatal error: ofxGui.h: No such file or directory
 #include "ofxGui.h"
                    ^
compilation terminated.

Any idea why this could have happened? How do I fix this?

Is there an addons.make and does it contain ofxGui?

the correct way to compile the PG is to run the compilePG.sh script in scripts/linux

that will leave a projectGenerator folder directly in the root of the OF install.