# This is about extension to upload to extension manager

**URL:** <https://discourse.slicer.org/t/this-is-about-extension-to-upload-to-extension-manager/43435>\
**Category:** Development\
**Tags:** build, extensions-manager\
**Created:** [June 20, 2025, 2:47pm UTC](https://discourse.slicer.org/t/this-is-about-extension-to-upload-to-extension-manager/43435 "2025-06-20T14:47:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Pranav\_Rai](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pranav_rai/32/80279_2.png) [@Pranav\_Rai](https://discourse.slicer.org/u/Pranav_Rai)\
**Post date:** [June 20, 2025, 2:47pm UTC](https://discourse.slicer.org/t/this-is-about-extension-to-upload-to-extension-manager/43435/1 "2025-06-20T14:47:45Z")

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I am trying to create extensions for my custom slicer application by running the command given in the docs. Still, after running it and setting everything in place, the final folder comes empty every time, and the solutions that is available online is not working. So help fix this issue forefront.

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [June 20, 2025, 11:00pm UTC](https://discourse.slicer.org/t/this-is-about-extension-to-upload-to-extension-manager/43435/2 "2025-06-20T23:00:43Z")

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> [@Pranav\_Rai](#):
>
> by running the command given in the docs.

You need to be more specific than that. Which commands, whats the output?

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<div class="post-metadata">

**Author:** ![Pranav\_Rai](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pranav_rai/32/80279_2.png) [@Pranav\_Rai](https://discourse.slicer.org/u/Pranav_Rai)\
**Post date:** [June 23, 2025, 10:04am UTC](https://discourse.slicer.org/t/this-is-about-extension-to-upload-to-extension-manager/43435/3 "2025-06-23T10:04:12Z")

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this command I have used :  
cd /d C:\D\ExtensionsIndexR

“c:\Program Files\CMake\bin\cmake.exe” -DSlicer\_DIR:PATH=C:/D/SR/Slicer-build ^  
-DSlicer\_EXTENSION\_DESCRIPTION\_DIR:PATH=C:/D/ExtensionsIndex ^  
-DCMAKE\_BUILD\_TYPE:STRING=Release ^  
C:/D/S/Extensions/CMake

“c:\Program Files\CMake\bin\cmake.exe” --build . --config Release

and the build folder for the extension is coming empty everytime