# DentalSegmentator and TotalSegmentator error

**URL:** <https://discourse.slicer.org/t/dentalsegmentator-and-totalsegmentator-error/42528>\
**Category:** Support\
**Tags:** python, pytorch\
**Created:** [April 10, 2025, 6:24pm UTC](https://discourse.slicer.org/t/dentalsegmentator-and-totalsegmentator-error/42528 "2025-04-10T18:24:43Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Laura\_Rodriguez1](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/laura_rodriguez1/32/78669_2.png) [@Laura\_Rodriguez1](https://discourse.slicer.org/u/Laura_Rodriguez1)\
**Post date:** [April 10, 2025, 6:24pm UTC](https://discourse.slicer.org/t/dentalsegmentator-and-totalsegmentator-error/42528/1 "2025-04-10T18:24:43Z")

</div>

HI, I NEED HELP, I TRY TO USE TOTAL AND DENTAL SEGMENTATOR AND I GET THE FOLLOWING ERRORS

TOTAL SEGMENTATOR ERROR  
Traceback (most recent call last):  
File “C:\Users\LENOVO}\AppData\Local\slicer.org\Slicer 5.8.1\bin\Python\slicer\util.py”, line 3303, in tryWithErrorDisplay  
yield  
File “C:/Users/LENOVO}/AppData/Local/slicer.org/Slicer 5.8.1/slicer.org/Extensions-33241/TotalSegmentator/lib/Slicer-5.8/qt-scripted-modules/TotalSegmentator.py”, line 319, in onPackageUpgrade  
self.logic.setupPythonRequirements(upgrade=True)  
File “C:/Users/LENOVO}/AppData/Local/slicer.org/Slicer 5.8.1/slicer.org/Extensions-33241/TotalSegmentator/lib/Slicer-5.8/qt-scripted-modules/TotalSegmentator.py”, line 818, in setupPythonRequirements  
raise InstallError(“This module requires SlicerNNUNet extension. Install it from the Extensions Manager.”)  
TotalSegmentator.InstallError: This module requires SlicerNNUNet extension. Install it from the Extensions Manager.

DENTAL SEGMENTATOR ERROR

Start nnUNet install with requirements : nnunetv2  
Installing nnunetv2 --no-deps…  
Install returned non-zero exit status : Command ‘[‘C:/Users/LENOVO}/AppData/Local/slicer.org/Slicer 5.8.1/bin/../bin\PythonSlicer.EXE’, ‘-m’, ‘pip’, ‘install’, ‘nnunetv2’, ‘–no-deps’]’ returned non-zero exit status 1.. Attempting to continue…  
2025/04/10 13:18:29.470 :: Error occurred during install : nnunetv2