# Error after building 

**URL:** <https://discourse.slicer.org/t/error-after-building/17445>\
**Category:** Radiomics\
**Created:** [May 4, 2021, 2:47pm UTC](https://discourse.slicer.org/t/error-after-building/17445 "2021-05-04T14:47:31Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![MarioGQ](https://avatars.discourse-cdn.com/v4/letter/m/e9c0ed/32.png) [@MarioGQ](https://discourse.slicer.org/u/MarioGQ)\
**Post date:** [May 4, 2021, 2:47pm UTC](https://discourse.slicer.org/t/error-after-building/17445/1 "2021-05-04T14:47:31Z")

</div>

Hi everyone. I keep receiving this error when i try to open Slicer environmenr after building it

QWindowsEGLContext: ANGLE only partially supports OpenGL ES \> 3.0  
QWindowsEGLContext: Failed to create context, eglError: 3005, this: 0x1d151cf5e60

Have enyine got the same? What have you done to resolve it?

Thanks!

---

<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [May 21, 2021, 6:36pm UTC](https://discourse.slicer.org/t/error-after-building/17445/2 "2021-05-21T18:36:53Z")

</div>

It seems that you don’t have proper OpenGL support on your computer. Does the code run in some virtual/headless environment?