# Version 5.7.0 - DentalSegmentator - problem

**URL:** <https://discourse.slicer.org/t/version-5-7-0-dentalsegmentator-problem/40580>\
**Category:** Support\
**Tags:** segmentation, python, segmentations, segment-editor\
**Created:** [December 9, 2024, 2:41pm UTC](https://discourse.slicer.org/t/version-5-7-0-dentalsegmentator-problem/40580 "2024-12-09T14:41:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Ender](https://avatars.discourse-cdn.com/v4/letter/e/58f4c7/32.png) [@Ender](https://discourse.slicer.org/u/Ender)\
**Post date:** [December 9, 2024, 2:41pm UTC](https://discourse.slicer.org/t/version-5-7-0-dentalsegmentator-problem/40580/1 "2024-12-09T14:41:53Z")

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I installed version 5.7.0. After reading the dcom file, I wanted to create DentalSegmentator. After pressing the “Apply” button and waiting a while, the following message appeared in the log.

2024/12/09 10:53:29.712 :: nnUNet is already installed (2.5.1) and compatible with requested version (nnunetv2).

2024/12/09 10:53:29.720 :: Downloading model weights…

 ![File](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/6/a623bdf1576a68f6b6e4e32548b44e3315c047b7.jpeg)

Request for help

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [December 11, 2024, 12:22pm UTC](https://discourse.slicer.org/t/version-5-7-0-dentalsegmentator-problem/40580/2 "2024-12-11T12:22:28Z")

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DentalSegmentator has section about failed to download model weights. See the link below:

> **[GitHub - gaudot/SlicerDentalSegmentator: 3D Slicer extension for fully-automatic...](https://github.com/gaudot/SlicerDentalSegmentator?tab=readme-ov-file#failed-to-download--find-weights)**
>
> 3D Slicer extension for fully-automatic segmentation of CT and CBCT dental volumes.

Specific code involved though the error message never display(?) so maybe not a problem with the download.

> <https://github.com/gaudot/SlicerDentalSegmentator/blob/7eaa69532e59d468cac6a28ecdd6c6218107eccd/DentalSegmentator/DentalSegmentatorLib/PythonDependencyChecker.py#L125>

cc @Thibault_Pelletier

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**Author:** ![Thibault\_Pelletier](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/thibault_pelletier/32/4767_2.png) [@Thibault\_Pelletier](https://discourse.slicer.org/u/Thibault_Pelletier)\
**Post date:** [December 11, 2024, 3:50pm UTC](https://discourse.slicer.org/t/version-5-7-0-dentalsegmentator-problem/40580/3 "2024-12-11T15:50:10Z")

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Hi @Ender,

Your problem is most likely related to nnUNet install error on Python 3.9 which have been also reported here : [Dental segmantator - #2 by jamesobutler](https://discourse.slicer.org/t/dental-segmantator/40519/2)

You should have more information on the actual error in the Python console.

Best,  
Thibault