Unsolved QOpenGL issues in Ubuntu

[mpergand]

On Linux, i'm doing the following:

sudo apt-get install build-essential
sudo apt-get install libgl-dev libglu-dev

Work well with Ubuntu, Cinnamon and others.

[Maarouf Med Mahdi]

@SGaist
No i didn't installed other version .

[Maarouf Med Mahdi]

@mpergand
i tried all the commands that i got from this question also the site :
https://wiki.qt.io/Install_Qt_5_on_Ubuntu

take a look
sudo apt-get install mesa-common-dev
sudo apt-get install libglu1-mesa-dev -y
sudo apt-get install build-essential
sudo apt-get install libgl-dev libglu-dev
sudo apt-get install libfontconfig1
sudo apt-get install mesa-common-dev
sudo apt-get install libglu1-mesa-dev -y
sudo apt-get install mesa-common-dev

[Maarouf Med Mahdi]

just i want to say same thing .
i tested a new empty project has compiled correctly , but my last project can not be done .

[jsulm]

@Maarouf-Med-Mahdi Delete the build folder of your project and do a clean rebuild.
Also, are you doing anything special in this (not working) project?

[Maarouf Med Mahdi]

Hi @jsulm
just i created the project on windows OS , and the same project i try to compile it on ubuntu .
my objective is to deploy my app with Linux OS .

[SGaist]

Is it a newly created default project ?

[Maarouf Med Mahdi]

Hi All ,
NEWS,
i tested some class of my project and i got the principal cause of that .
i can't include QtGui library in any class ,if i do ,i will get this errors .
Exception QtGui !!!!???
any one can explain to me why ?
#include<QtGui>

[Maarouf Med Mahdi]

Hi @SGaist
Yes is it !

[SGaist]

Looks like there's something fishy with your kit then.

[Maarouf Med Mahdi]

@SGaist
more than that .
I removed all my inclusion of Qtgui library in all the class of my project , and i got build my project finally . i can say my problem has fixed ,but i don't know what is ambiguous in my kit .