Porting an application on Ubuntu

jenya7

I created a widget application on Debian machine and it runs good. Now I copied the application on Ubuntu machine and opened it. While compile I get an error
cannot find -lGLESv2.
I guess some library is missing. What should I install?

Another information. When I open Qt Creator I get

The following plugins have errors and cannot be loaded
QmlDesigner
QmlProfiler
Plugin initialization failed Cannot create OpenGL context.
I suppose it's related.

JonB

@jenya7 said in Porting an application on Ubuntu:

cannot find -lGLESv2.

I know nothing about this, but are you compiling fro RPi? Googling for qt cannot find lGLEsv2 (Note for Google search, you must omit the leading hyphen, do not put -lGLEv2 in your search string, else it will avoid lGLEv2!) reveals RPI hits, do you want to read those?

jenya7

@JonB said in Porting an application on Ubuntu:

@jenya7 said in Porting an application on Ubuntu:

cannot find -lGLESv2.

I know nothing about this, but are you compiling fro RPi? Googling for qt cannot find lGLEsv2 (Note for Google search, you must omit the leading hyphen, do not put -lGLEv2 in your search string, else it will avoid lGLEv2!) reveals RPI hits, do you want to read those?

It's other board - ODROID, but actually it doesn't matter - I think it's a Qt library, isn't it?

jsulm

@jenya7 Install libgles2-mesa-dev package

jenya7

@jsulm said in Porting an application on Ubuntu:

@jenya7 Install libgles2-mesa-dev package

It says - libgles2-mesa-dev is already the newest version (19.2.8-0ubuntu0-18.04.3)

jsulm

@jenya7 Usually one has to install libgl1-mesa-dev on Linux like described here: https://doc.qt.io/qt-5/linux.html

jenya7

@jsulm said in Porting an application on Ubuntu:

@jenya7 Usually one has to install libgl1-mesa-dev on Linux like described here: https://doc.qt.io/qt-5/linux.html

It says the same - libgl1-mesa-dev is already the newest version (19.2.8-0ubuntu0-18.04.3)

anil_arise

@jenya7 install libgles2-mesa and libgles2-mesa-dev;

apt-get install libgles2-mesa-dev libgles2-mesa libgles2

can you show your exact compile error messages?

jenya7

@anil_arise said in Porting an application on Ubuntu:

@jenya7 install libgles2-mesa and libgles2-mesa-dev;

apt-get install libgles2-mesa-dev libgles2-mesa libgles2

can you show your exact compile error messages?

cannot find -lGLESv2.

but before, when I open Qt Creator
The following plugins have errors and cannot be loaded
QmlDesigner
QmlProfiler
Plugin initialization failed Cannot create OpenGL context.

May be I can modify QT_OPENGL. Where can I find it?

SGaist

Hi,

How did you install Qt on both these machines ?

jenya7

@SGaist said in Porting an application on Ubuntu:

Hi,

How did you install Qt on both these machines ?

I installed it on Ubuntu. The problem is on Ubuntu.
I have Qt installed on another machine on Debian (for RPi) and on this installation the widget application runs without problems.

I found the solution. During the installation I broke the GPU driver libraries, so this helped
sudo apt install --reinstall mali-x11