# Release \[windows\] build of Slicer fails with error on sphinx-build

**URL:** <https://discourse.slicer.org/t/release-windows-build-of-slicer-fails-with-error-on-sphinx-build/30602>\
**Category:** Development\
**Tags:** build\
**Created:** [July 14, 2023, 1:16pm UTC](https://discourse.slicer.org/t/release-windows-build-of-slicer-fails-with-error-on-sphinx-build/30602 "2023-07-14T13:16:31Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![drdH](https://avatars.discourse-cdn.com/v4/letter/d/ba9def/32.png) [@drdH](https://discourse.slicer.org/u/drdH)\
**Post date:** [July 14, 2023, 1:16pm UTC](https://discourse.slicer.org/t/release-windows-build-of-slicer-fails-with-error-on-sphinx-build/30602/1 "2023-07-14T13:16:32Z")

</div>

Hello Team,  
Kindly wanted your help on the below build issue:

> [@Release build of Slicer fails with error on sphinx-build](https://discourse.slicer.org/t/release-build-of-slicer-fails-with-error-on-sphinx-build/30544/6):
>
> Probably there is something else going wrong with the build. Look higher up in the logs to see what is going on. Maybe someone who routinely builds on Windows can offer suggestions.

 ![grafik](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/1/0/1014dad4dac0a1cc9ac673d41e9b17f91c38983f.png)

Regards,  
Darshan

---

<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:** [July 14, 2023, 1:55pm UTC](https://discourse.slicer.org/t/release-windows-build-of-slicer-fails-with-error-on-sphinx-build/30602/2 "2023-07-14T13:55:25Z")

</div>

Sphinx build is just a warning. It is expected if you haven’t set up sphinx. You can ignore it.

To learn more about the build error, you need to look a the build log. The error list does not contain information about the root cause of the error (I usually search for the first occurrence of `: err`).