# DentalSegmentator extension installation failed

**URL:** <https://discourse.slicer.org/t/dentalsegmentator-extension-installation-failed/36978>\
**Category:** Support\
**Tags:** segmentation, segmentations, segment-editor, dental\
**Created:** [June 24, 2024, 2:08pm UTC](https://discourse.slicer.org/t/dentalsegmentator-extension-installation-failed/36978 "2024-06-24T14:08:56Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![nucerar](https://avatars.discourse-cdn.com/v4/letter/n/2acd7d/32.png) [@nucerar](https://discourse.slicer.org/u/nucerar)\
**Post date:** [June 24, 2024, 2:08pm UTC](https://discourse.slicer.org/t/dentalsegmentator-extension-installation-failed/36978/1 "2024-06-24T14:08:56Z")

</div>

Dear 3D Slicer Community,  
I am trying to install the DentalSegmentator extension from my MAC PC.  
When I look for the extension that is built into the software, I cannot find it.  
When I download the .zip file with the extension and try to install it manually, I get this message:  
“No extension description found in archive”.  
Can anyone help me?  
Thanks in advance for any assistance.  
Riccardo

---

<div class="post-metadata">

**Author:** ![Jessica\_de\_Kort](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jessica_de_kort/32/70344_2.png) [@Jessica\_de\_Kort](https://discourse.slicer.org/u/Jessica_de_Kort)\
**Post date:** [June 24, 2024, 5:26pm UTC](https://discourse.slicer.org/t/dentalsegmentator-extension-installation-failed/36978/2 "2024-06-24T17:26:38Z")

</div>

Hi there,  
I found that this link helped me install an extension:

[![](https://img.youtube.com/vi/QsxzjQb05D4/maxresdefault.jpg "How to install a custom extension module? #00-C. 3D Slicer Tutorial step by step for beginners") ](https://www.youtube.com/watch?v=QsxzjQb05D4)