# DentalSegmentator error

**URL:** <https://discourse.slicer.org/t/dentalsegmentator-error/41262>\
**Category:** Support\
**Tags:** segmentation, dental\
**Created:** [January 24, 2025, 3:32pm UTC](https://discourse.slicer.org/t/dentalsegmentator-error/41262 "2025-01-24T15:32:47Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Nermin\_Morgan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/nermin_morgan/32/79210_2.png) [@Nermin\_Morgan](https://discourse.slicer.org/u/Nermin_Morgan)\
**Post date:** [January 24, 2025, 3:32pm UTC](https://discourse.slicer.org/t/dentalsegmentator-error/41262/1 "2025-01-24T15:32:47Z")

</div>

Hello  
I downloaded preview version 5.7 and I could not use the dental segmentator, this error appears in the console:  
[Qt] void \_\_cdecl qMRMLSegmentEditorWidget::setSourceVolumeNode(class vtkMRMLNode \*) failed: need to set segment editor and segmentation nodes first  
How can I fix it?  
Also, is dental segmentator only used with NVIDIA driver?