ERROR: Could not initialize OpenGL / GLES library

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#1

Hi all,
I attempted several times to install Urho3D on RPi, which failed.
Finally, I reinstalled Raspbian Jessie OS.
Then reinstalled Urho3D with the following method(with RPi’s experimental OpenGL disabled, and GPU=768 MB.) :

[code]sudo apt-get update
sudo apt-get install build-essential
sudo apt-get install freeglut3 freeglut3-dev
sudo apt-get install unixodbc-dev

sudo apt-get install libevdev2

sudo apt-get install libasound2-dev
sudo apt-get install libaudio-dev
sudo apt-get install libesd0-dev
sudo apt-get install libpulse-dev
sudo apt-get install libroar-dev
sudo apt-get install libreadline6-dev

sudo apt-get install git cmake make

sudo git clone https://github.com/urho3d/Urho3D
cd Urho3D
sudo ./cmake_rpi.sh /home/pi/Urho3D
sudo make[/code]

Now after installation, when I run ./Urho3DPlayer , it gives the following error:

[Thu Oct 13 10:56:17 2016] INFO: Opened log file /home/pi/.local/share/urho3d/logs/NinjaSnowWar.as.log [Thu Oct 13 10:56:17 2016] INFO: Created 3 worker threads [Thu Oct 13 10:56:17 2016] INFO: Added resource path /home/pi/Urho3D/bin/Data/ [Thu Oct 13 10:56:17 2016] INFO: Added resource path /home/pi/Urho3D/bin/CoreData/ [Thu Oct 13 10:56:17 2016] INFO: Added resource path /home/pi/Urho3D/bin/Autoload/LargeData/ [Thu Oct 13 10:56:17 2016] ERROR: Could not create window, root cause: 'Could not initialize OpenGL / GLES library'

What is the problem !!?
How can I successfully get Urho3D to work on RPi !!!?!?!?!?

#2

The error is telling you that OpenGL wasn’t able to initialize. I think might be because of the:

I haven’t a Rasberry Pi yet so this is a stab in the dark but now that you have Urho3D installed, try enabling the RPi’s experimental OpenGL feature and see if it starts.

#3

Our RPI port has only be built and tested using GLES at the moment. Personally I haven’t tried it with OpenGL yet, so I have no idea whether it will work with OpenGL.

#4

Thanks @weitjong for your reply.
But I don’t want to use OpenGL. I just want to run Urho3D ! That’s it !!
So, what is my system’s problem !?
Please help me solve this. :cry:

#5

It is easier to verify that you have a working build environment by first test building a simple GLES project instead of using Urho3D. I did that when I first got my RPI. After you know for sure you can build a simple project then come back to retry to build Urho3D project. It has been awhile since the last time I build it natively on the board itself, to tell you the truth. I may try that later when I have time on my newer RPI 3. Usually just cross-compile on a Linux host and scp to the board for actual testing. I am not sure what went wrong with your build environment, but this is how I setup mine.

[ul][li]For cross-compiling: just follow the steps as outlined in urho3d.github.io/documentation/ … aspberryPi. The section of the text is contributed by me, so it exactly outlines what I did.[/li]
[li]For native build on the board: install the prerequisite software as root and then build Urho3D as normal user (I hope I won’t catch you using root again, I cannot stand such mistake :wink: and may opt to not respond at all and let others to help you). After calling cmake, verify the generated build tree contains this file: /Source/ThirdParty/SDL/include/generated/SDL_config.h and verify this file contains entries that indicate SDL has detected the video driver for RPI and OpenGL ES 1 and 2. If not then install the missing prerequisite package and rinse & repeat, each time deleting the previously generated build tree first when you are reusing a same build tree path.[/li][/ul]

#6

[quote=“weitjong”]It is easier to verify that you have a working build environment by first test building a simple GLES project instead of using Urho3D. I did that when I first got my RPI. After you know for sure you can build a simple project then come back to retry to build Urho3D project. It has been awhile since the last time I build it natively on the board itself, to tell you the truth. I may try that later when I have time on my newer RPI 3. Usually just cross-compile on a Linux host and scp to the board for actual testing. I am not sure what went wrong with your build environment, but this is how I setup mine.

[ul][li]For cross-compiling: just follow the steps as outlined in urho3d.github.io/documentation/ … aspberryPi. The section of the text is contributed by me, so it exactly outlines what I did.[/li]
[li]For native build on the board: install the prerequisite software as root and then build Urho3D as normal user (I hope I won’t catch you using root again, I cannot stand such mistake :wink: and may opt to not respond at all and let others to help you). After calling cmake, verify the generated build tree contains this file: /Source/ThirdParty/SDL/include/generated/SDL_config.h and verify this file contains entries that indicate SDL has detected the video driver for RPI and OpenGL ES 1 and 2. If not then install the missing prerequisite package and rinse & repeat, each time deleting the previously generated build tree first when you are reusing a same build tree path.[/li][/ul][/quote]

Thanks @weitjong for your reply.

I solved the problem !!
First I did:

Then reinstalled Urho3D.
Now it works.

Now I have another problem(!!!) which I described here:
topic2447.html

#7

i’ve been following this thread over the weekend and have had the same errors. removing mesa-common-dev also worked for me.

thanks for all effort. :smiley:

#8

[quote=“cnx_coder”][quote]
I solved the problem !!
First I did:

Then reinstalled Urho3D.
Now it works.
[/quote]

i’ve been following this thread over the weekend and have had the same errors. removing mesa-common-dev also worked for me.

thanks for all effort. :smiley:[/quote]

It’s nice to hear that this issue is common among RPi users.
Maybe Urho3D developers can think about a workaround.

Also, I’ve faced another issue described here: topic2447.html
Do you have the same issue !!?