# IUP: OpenGLES 01\_IntroducingPVRShell

**URL:** <https://forums.imgtec.com/t/iup-opengles-01-introducingpvrshell/3846>\
**Category:** Uncategorized\
**Created:** [November 24, 2023, 10:55pm UTC](https://forums.imgtec.com/t/iup-opengles-01-introducingpvrshell/3846 "2023-11-24T22:55:54Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![nicolas97220](https://avatars.discourse-cdn.com/v4/letter/n/b782af/32.png) [@nicolas97220](https://forums.imgtec.com/u/nicolas97220)\
**Post date:** [November 24, 2023, 10:55pm UTC](https://forums.imgtec.com/t/iup-opengles-01-introducingpvrshell/3846/1 "2023-11-24T22:55:54Z")

</div>

Hi everyone,

I am trying to do the course in Graphics of the Imagination University Program that you can find here : [Introduction to Mobile Graphics (English) Downloads Page - Imagination University Programme](https://university.imgtec.com/intro-to-mobile-graphics-download-page-en/)

My issue is about compiling the examples. It fails with the following error:  
CMake Error at CMakeLists.txt:8 (include):  
include could not find requested file:

```
/home/user/Projects/OpenGL/intro-mobile-graphics-v2.2/Intro_Mobile_Graphics_v2.2/Admin - Installation Files and Notes/Intro_Mobile_Graphics/../examples/ExampleFunctions.cmake 

```

There is a file which is needed but not included. Would someone have a solution for that ?

Thanks in advance

---

<div class="post-metadata">

**Author:** ![nicolas97220](https://avatars.discourse-cdn.com/v4/letter/n/b782af/32.png) [@nicolas97220](https://forums.imgtec.com/u/nicolas97220)\
**Post date:** [November 26, 2023, 5:44pm UTC](https://forums.imgtec.com/t/iup-opengles-01-introducingpvrshell/3846/2 "2023-11-26T17:44:59Z")

</div>

I randomly found the needed file in the image recommended in the last Lesson of the Imagination University Program:  
[Index of /rootfs/bb.org/testing/2020-04-06/stretch-imgtec](https://rcn-ee.com/rootfs/bb.org/testing/2020-04-06/stretch-imgtec/) and then the file  
**bone-debian-9.12-imgtec-armhf-2020-04-06-4gb.img.xz**

Untar the .xy file and write the .img file to a sd card using dd.

The file I was looking for is located in /opt/Native\_SDK/examples/ExampleFunctions.cmake