# Dental Segmentator Error

**URL:** <https://discourse.slicer.org/t/dental-segmentator-error/41399>\
**Category:** Support\
**Tags:** segmentation, ai, dental, ml\
**Created:** [January 31, 2025, 11:27am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399 "2025-01-31T11:27:02Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![mraihan](https://avatars.discourse-cdn.com/v4/letter/m/c6cbf5/32.png) [@mraihan](https://discourse.slicer.org/u/mraihan)\
**Post date:** [January 31, 2025, 11:27am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/1 "2025-01-31T11:27:02Z")

</div>

Hi,

I am unable to use the Dental Segmentator module. I am using slicer 5.8, Pytorch version is 2.6.0 + cu118. I have tried manually downloading the weights and adding it to the Recources/ML folder. However, I am still getting the following error in the log:

2025/01/30 09:50:19.665 :: nnUNet is already installed (2.5.1) and compatible with requested version (nnunetv2).  
2025/01/30 09:50:24.325 :: Transferring volume to nnUNet in C:/Users//AppData/Local/Temp/2/Slicer-OCVZwp  
2025/01/30 09:50:30.096 :: Starting nnUNet with the following parameters:  
2025/01/30 09:50:30.096 ::  
2025/01/30 09:50:30.096 :: C:\Users\Slicer 5.8.0\lib\Python\Scripts\nnUNetv2\_predict.exe -i C:/Users//AppData/Local/Temp/2/Slicer-OCVZwp/input -o C:/Users//AppData/Local/Temp/2/Slicer-OCVZwp/output -d Dataset111\_453CT -tr nnUNetTrainer -p nnUNetPlans -c 3d\_fullres -f 0 -npp 1 -nps 1 -step\_size 0.5 -device cuda -chk checkpoint\_final.pth --disable\_tta  
2025/01/30 09:50:30.096 ::  
2025/01/30 09:50:30.096 :: JSON parameters :  
2025/01/30 09:50:30.096 :: {  
2025/01/30 09:50:30.096 :: “folds”: “0”,  
2025/01/30 09:50:30.096 :: “device”: “cuda”,  
2025/01/30 09:50:30.096 :: “stepSize”: 0.5,  
2025/01/30 09:50:30.096 :: “disableTta”: true,  
2025/01/30 09:50:30.096 :: “nProcessPreprocessing”: 1,  
2025/01/30 09:50:30.096 :: “nProcessSegmentationExport”: 1,  
2025/01/30 09:50:30.096 :: “checkPointName”: “”,  
2025/01/30 09:50:30.096 :: “modelPath”: {  
2025/01/30 09:50:30.096 :: “\_path”: “C:\Users\Slicer 5.8.0\slicer.org\Extensions-33216\DentalSegmentator\lib\Slicer-5.8\qt-scripted-modules\Resources\ML”  
2025/01/30 09:50:30.096 :: }  
2025/01/30 09:50:30.096 :: }  
2025/01/30 09:50:30.137 :: nnUNet preprocessing…  
2025/01/30 09:50:33.686 :: Traceback (most recent call last):  
2025/01/30 09:50:33.686 :: File “C:\Users\Slicer 5.8.0\lib\Python\Lib\runpy.py”, line 197, in \_run\_module\_as\_main  
2025/01/30 09:50:33.781 :: return _run\_code(code, main\_globals, None,  
2025/01/30 09:50:33.781 :: File “C:\Users\Slicer 5.8.0\lib\Python\Lib\runpy.py”, line 87, in run\_code  
2025/01/30 09:50:33.781 :: exec(code, run\_globals)  
2025/01/30 09:50:33.781 :: File "C:\Users\Slicer 5.8.0\lib\Python\Scripts\nnUNetv2\_predict.exe\_main.py", line 7, in   
2025/01/30 09:50:33.781 :: File “C:\Users\Slicer 5.8.0\lib\Python\Lib\site-packages\nnunetv2\inference\predict\_from\_raw\_data.py”, line 861, in predict\_entry\_point  
2025/01/30 09:50:33.781 :: predictor.initialize\_from\_trained\_model\_folder(  
2025/01/30 09:50:33.781 :: File “C:\Users\Slicer 5.8.0\lib\Python\Lib\site-packages\nnunetv2\inference\predict\_from\_raw\_data.py”, line 84, in initialize\_from\_trained\_model\_folder  
2025/01/30 09:50:33.781 :: checkpoint = torch.load(join(model\_training\_output\_dir, f’fold_{f}', checkpoint\_name),  
2025/01/30 09:50:33.781 :: File “C:\Users\Slicer 5.8.0\lib\Python\Lib\site-packages\torch\serialization.py”, line 1470, in load  
2025/01/30 09:50:33.781 :: raise pickle.UnpicklingError(\_get\_wo\_message(str(e))) from None  
2025/01/30 09:50:33.781 :: \_pickle.UnpicklingError: Weights only load failed. This file can still be loaded, to do so you have two options, e[1mdo those steps only if you trust the source of the checkpointe[0m.  
2025/01/30 09:50:33.781 :: (1) In PyTorch 2.6, we changed the default value of the `weights_only` argument in `torch.load` from `False` to `True`. Re-running `torch.load` with `weights_only` set to `False` will likely succeed, but it can result in arbitrary code execution. Do it only if you got the file from a trusted source.  
2025/01/30 09:50:33.781 :: (2) Alternatively, to load with `weights_only=True` please check the recommended steps in the following error message.  
2025/01/30 09:50:33.781 :: WeightsUnpickler error: Unsupported global: GLOBAL numpy.core.multiarray.scalar was not an allowed global by default. Please use `torch.serialization.add_safe_globals([scalar])` or the `torch.serialization.safe_globals([scalar])` context manager to allowlist this global if you trust this class/function.  
2025/01/30 09:50:33.781 ::  
2025/01/30 09:50:33.781 :: Check the documentation of torch.load to learn more about types accepted by default with weights\_only [torch.load — PyTorch 2.6 documentation](https://pytorch.org/docs/stable/generated/torch.load.html).  
2025/01/30 09:50:33.781 ::  
2025/01/30 09:50:33.781 :: #######################################################################  
2025/01/30 09:50:33.781 :: Please cite the following paper when using nnU-Net:  
2025/01/30 09:50:33.781 :: Isensee, F., Jaeger, P. F., Kohl, S. A., Petersen, J., & Maier-Hein, K. H. (2021). nnU-Net: a self-configuring method for deep learning-based biomedical image segmentation. Nature methods, 18(2), 203-211.  
2025/01/30 09:50:33.781 :: #######################################################################  
2025/01/30 09:50:34.073 :: Loading inference results…  
2025/01/30 09:50:36.366 :: Error loading results :  
2025/01/30 09:50:36.366 :: Failed to load the segmentation.  
2025/01/30 09:50:36.366 :: Something went wrong during the nnUNet processing.  
2025/01/30 09:50:36.366 :: Please check the logs for potential errors and contact the library maintainers."

Could someone please look into the issue and recommend some possible workarounds?

---

<div class="post-metadata">

**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:** [January 31, 2025, 3:20pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/2 "2025-01-31T15:20:53Z")

</div>

Hi @mraihan,

Looking at the error message, the PyTorch version 2.6 seems to be incompatible with the current version of the model / loading settings of nnU-Net.

You can manually downgrade the installed PyTorch version by using the [Slicer PyTorch extension](https://github.com/fepegar/SlicerPyTorch) and installing the 2.5 version.

Best,  
Thibault

---

<div class="post-metadata">

**Author:** ![mraihan](https://avatars.discourse-cdn.com/v4/letter/m/c6cbf5/32.png) [@mraihan](https://discourse.slicer.org/u/mraihan)\
**Post date:** [January 31, 2025, 6:15pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/3 "2025-01-31T18:15:00Z")

</div>

Thanks, Thibault. It worked!

Regards,  
Raihan

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<div class="post-metadata">

**Author:** ![priskus](https://avatars.discourse-cdn.com/v4/letter/p/87869e/32.png) [@priskus](https://discourse.slicer.org/u/priskus)\
**Post date:** [February 5, 2025, 4:11pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/4 "2025-02-05T16:11:56Z")

</div>

Please, tell, how to install another version of Torch than automatic. I am trying to type different version in the field “Torch version requirement” But all the time I got errors:  
ERROR: No matching distribution found for torch2.5.0  
ERROR: Could not find a version that satisfies the requirement torch2.5.1 (from versions: none)  
ERROR: No matching distribution found for torch2.5.1  
ERROR: Could not find a version that satisfies the requirement torch2.5.1 (from versions: none)  
ERROR: No matching distribution found for torch2.5.1  
ERROR: Could not find a version that satisfies the requirement torch2.4.1 (from versions: none)  
ERROR: No matching distribution found for torch2.4.1  
ERROR: Could not find a version that satisfies the requirement torch2.4.0 (from versions: none)  
ERROR: No matching distribution found for torch2.4.0  
ERROR: Could not find a version that satisfies the requirement torch2.3.1 (from versions: none)  
ERROR: No matching distribution found for torch2.3.1

 ![изображение](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/0/b0f244001afa91e760f52cc9a564013c557fb157.png)

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<div class="post-metadata">

**Author:** ![mraihan](https://avatars.discourse-cdn.com/v4/letter/m/c6cbf5/32.png) [@mraihan](https://discourse.slicer.org/u/mraihan)\
**Post date:** [February 5, 2025, 4:40pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/5 "2025-02-05T16:40:03Z")

</div>

are you trying to install PyTorch for DentalSegmentator? You can uninstall the PyTorch extension and DentalSegmentator automatically installs the required library on its first usage (including the required PyTorch version). That worked for me.

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<div class="post-metadata">

**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:** [February 5, 2025, 4:46pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/6 "2025-02-05T16:46:00Z")

</div>

If you want to install a specific version, you need to specify it using “PyPi” syntaxe :

Using “\<2.6” should force the install to the latest torch version before 2.6

For 2.5.1, you should use “==2.5.1”

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<div class="post-metadata">

**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:** [February 5, 2025, 4:49pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/7 "2025-02-05T16:49:41Z")

</div>

Just a follow up on this problem, the issue is currently being tracked in the nnUNet repository to change how the nnUNet loads its weights : [PyTorch 2.6 has changed the default value of `weights_only` to `True`, breaking the loading of some `nnunetv2` models · Issue #2681 · MIC-DKFZ/nnUNet · GitHub](https://github.com/MIC-DKFZ/nnUNet/issues/2681)

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<div class="post-metadata">

**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:** [February 5, 2025, 6:58pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/8 "2025-02-05T18:58:22Z")

</div>

The nnUNetv2 developer issued a fix and created a new release. Install the latest to use PyTorch 2.6. Also note that torchvision 0.21.0 is specifically compatible with PyTorch 2.6.0. See [this table](https://github.com/pytorch/vision?tab=readme-ov-file#installation) for more info.

> [@PyTorch 2.6 seems to break TotalSegmentor](https://discourse.slicer.org/t/pytorch-2-6-seems-to-break-totalsegmentor/41493/2):
>
> The developer of nnUNetv2 (a dependency of TotalSegmentator) issued a fix earlier today. Please try going to the “nnUNet” module in Slicer and specifying to install nnUNet \>=2.5.2. Let us know how it goes for you!

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<div class="post-metadata">

**Author:** ![yijie3091](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/yijie3091/32/80324_2.png) [@yijie3091](https://discourse.slicer.org/u/yijie3091)\
**Post date:** [May 11, 2025, 1:10pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/9 "2025-05-11T13:10:02Z")

</div>

![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/e/2e69a361e99e0d0642353932c88d661c48bc0994.png)  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/1/c/1cd7b2532a88bbd6b9076a4559407a7038351cbc.png)  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/d/b/dbedb425416080501938e5cf11f460e9a93b1b69.png)  
dear professor,when i download this“dentalsegmentator” extension，some questions above appeaer，how can i solve with them？

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<div class="post-metadata">

**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:** [May 14, 2025, 6:20am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/10 "2025-05-14T06:20:56Z")

</div>

Hi @yijie3091,

As pointed out by the message, the weight download failed because your internet connection was down.

To troubleshoot this, please follow the instructions here : [GitHub - gaudot/SlicerDentalSegmentator: 3D Slicer extension for fully-automatic segmentation of CT and CBCT dental volumes.](https://github.com/gaudot/SlicerDentalSegmentator?tab=readme-ov-file#failed-to-download--find-weights)

You will need to unzip the weight files in the correct folder and create a `download_info.json` file in the ML folder.

Best,  
Thibault

---

<div class="post-metadata">

**Author:** ![yijie3091](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/yijie3091/32/80324_2.png) [@yijie3091](https://discourse.slicer.org/u/yijie3091)\
**Post date:** [May 14, 2025, 7:47am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/11 "2025-05-14T07:47:54Z")

</div>

I have downloaded the zip files，but I can not  
find the weight file，even I do not have the LM folder.In addition ，my windows do not have GPU.

Thibault Pelletier via 3D Slicer Community \<[notifications@slicer.discoursemail.com](mailto:notifications@slicer.discoursemail.com)\>于2025年5月14日 周三14:20写道：

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<div class="post-metadata">

**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:** [May 14, 2025, 10:59am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/12 "2025-05-14T10:59:17Z")

</div>

Hi @yijie3091,

As written in the [troubleshooting section](https://github.com/gaudot/SlicerDentalSegmentator?tab=readme-ov-file#failed-to-download--find-weights), you need to :

- Create a ML folder in the Resources folder
- Download and unzip the [Dataset111\_453CT\_v100.zip](https://github.com/gaudot/SlicerDentalSegmentator/releases/download/v1.0.0-alpha/Dataset111_453CT_v100.zip) file in the ML folder
- Create a download\_info.json file in the ML folder with the following content : {“download\_url”: “[https://github.com/gaudot/SlicerDentalSegmentator/releases/download/v1.0.0-alpha/Dataset111\_453CT\_v100.zip](https://github.com/gaudot/SlicerDentalSegmentator/releases/download/v1.0.0-alpha/Dataset111_453CT_v100.zip)”}

If everything works well, you should have the following file accessible :  
C:\Users\\<user\_name\>\AppData\Local\slicer.org\Slicer 5.8.1\slicer.org\Extensions-33241\DentalSegmentator\lib\Slicer-5.8\qt-scripted-modules\Resources\ML\Dataset111\_453CT\nnUNetTrainer\_\_nnUNetPlans\_\_3d\_fullres\dataset.json

Best,  
Thibault

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<div class="post-metadata">

**Author:** ![yijie3091](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/yijie3091/32/80324_2.png) [@yijie3091](https://discourse.slicer.org/u/yijie3091)\
**Post date:** [May 18, 2025, 2:09pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/13 "2025-05-18T14:09:08Z")

</div>

![](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/6/b/6b8c4db2f08746621b7a5065ef993999d76c372c.jpeg)

I have followed your instructions step by step，but it seems have a problem.How can i solve with it？

Thibault Pelletier via 3D Slicer Community \<[notifications@slicer.discoursemail.com](mailto:notifications@slicer.discoursemail.com)\>于2025年5月14日 周三18:59写道：

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<div class="post-metadata">

**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:** [May 20, 2025, 7:36am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/14 "2025-05-20T07:36:46Z")

</div>

Hi @yijie3091,

Please don’t take pictures of you screen in the future and instead copy / paste the contents of the error messages and python console when providing context for your issues.

Regarding the issue itself, it’s indicating that the “dataset.json” file is missing in the python console. This indicates that your ML file tree is still not correct.

Your Resources folder should contain the following file structure :

```auto
+---Icons
| DentalSegmentator.png
| DentalSegmentator_full_icon.png
| info.png
| loading.gif
| start_icon.png
|       
\---ML
    | Dataset111_453CT_v100.zip
    | download_info.json
    |   
    \---Dataset111_453CT
        \---nnUNetTrainer __nnUNetPlans__ 3d_fullres
            | dataset.json
            | plans.json
            |   
            \---fold_0
                    checkpoint_final.pth

```

FYI you can print your file structure on windows using the command prompt and the `tree /F /A` command.

Best,  
Thibault

---

<div class="post-metadata">

**Author:** ![leoniea](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/leoniea/32/79336_2.png) [@leoniea](https://discourse.slicer.org/u/leoniea)\
**Post date:** [June 11, 2025, 12:36pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/15 "2025-06-11T12:36:22Z")

</div>

Hello, I tried to use the Dentalsegmentator and have set the folder of Resources correctly, but it seems like the nnunet cannot work at all. I have following errors:

```auto
[Qt] void __cdecl qMRMLSegmentEditorWidget::setSourceVolumeNode(class vtkMRMLNode *) failed: need to set segment editor and segmentation nodes first
[Python] Failed to load the segmentation.
[Python] Something went wrong during the nnUNet processing.
[Python] Please check the logs for potential errors and contact the library maintainers.

```

I have no idea I cannot install the pytorch with specific version like 2.5.1, only could be installed with 2.7.1, which is the latest one. When I tried to install Pytorch by pip, it would be stuck for a while and no reaction afterwards. Using the latest version would be ny effect that lead to such error?

Best,  
Leoniea

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<div class="post-metadata">

**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:** [June 11, 2025, 1:34pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/16 "2025-06-11T13:34:41Z")

</div>

Hi @leoniea,

Thank you for your message. Your problem is very likely due to the pytorch version. This version is not yet supported by Slicer (see [related issue for more information](https://github.com/Slicer/Slicer/issues/8468)).

Could you detail what you mean by:

> I cannot install the pytorch with specific version like 2.5.1

Installing specific versions of pytorch should be possible through the PyTorch module.

Best,  
Thibault

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<div class="post-metadata">

**Author:** ![leoniea](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/leoniea/32/79336_2.png) [@leoniea](https://discourse.slicer.org/u/leoniea)\
**Post date:** [June 11, 2025, 2:57pm UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/17 "2025-06-11T14:57:37Z")

</div>

hi thanks for your reply! Yeah I mean since the Pytorch will be installed automatically in version 2.7 when I directly click the “install” button, hence I tried to install it via “pip install torch==2.5.1…” in the python console of Slicer, but the installation process is always problemaitc and getting stuck during the process. I don’t know why but using other’s latop can handle this issue. Kind of weird. So is there any solution except using the “pip”?  
Thanks in advance!

Best  
Leoniea

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<div class="post-metadata">

**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:** [June 13, 2025, 5:15am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/18 "2025-06-13T05:15:25Z")

</div>

If you install pytorch first then the extension will not try to install it again.  
Installing PyTorch can be done using the dedicated PyTorch extension in the extension manager.

You can find more information on the [SlicerPyTorch Github](https://github.com/fepegar/SlicerPyTorch).

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**Author:** ![Josh\_Chow](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/josh_chow/32/79373_2.png) [@Josh\_Chow](https://discourse.slicer.org/u/Josh_Chow)\
**Post date:** [August 14, 2025, 5:29am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/19 "2025-08-14T05:29:26Z")

</div>

How do I create a “download\_info.json” file?

Also, my DentalSegmentator folder only has “lib” and “share” folders. So I created a “Resources” folder and a “ML” folder inside that. I unzipped the “SlicerDentalSegmentator-main” in the ML folder and placed the “Dataset111\_453CT\_v100.zip” in there. Is that the correct thing to do?

---

<div class="post-metadata">

**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:** [August 19, 2025, 5:56am UTC](https://discourse.slicer.org/t/dental-segmentator-error/41399/20 "2025-08-19T05:56:42Z")

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Hi @Josh_Chow,

The latest version of the dental segmentator now doesn’t require a .json file anymore.

You can update the extension using the check for updates / update button in the extensions manager.

To know where to create the ML folder, you can check the extension path in the module finder. The path should look like : `C:/Users/Thibault/AppData/Local/slicer.org/Slicer 5.8.1/slicer.org/Extensions-33241/DentalSegmentator/lib/Slicer-5.8/qt-scripted-modules/DentalSegmentator.py`

The resources folder will be located in the same folder :  
`C:/Users/Thibault/AppData/Local/slicer.org/Slicer 5.8.1/slicer.org/Extensions-33241/DentalSegmentator/lib/Slicer-5.8/qt-scripted-modules/Resources`

In the Resources folder, create a ML folder and unzip the weight files there.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/5/d/5d64e4e3109e1f45771a3c05e120d4641fcc6d86.jpeg)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/6/e611b227c9c518fba20691dbe510f9d1b77948b4.png)