# Please help me. I've tried everything i known

**URL:** <https://discourse.slicer.org/t/please-help-me-ive-tried-everything-i-known/46702>\
**Category:** Support\
**Tags:** segmentation, python\
**Created:** [April 9, 2026, 3:27pm UTC](https://discourse.slicer.org/t/please-help-me-ive-tried-everything-i-known/46702 "2026-04-09T15:27:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tech-Liuxy](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/tech-liuxy/32/82193_2.png) [@Tech-Liuxy](https://discourse.slicer.org/u/Tech-Liuxy)\
**Post date:** [April 9, 2026, 3:27pm UTC](https://discourse.slicer.org/t/please-help-me-ive-tried-everything-i-known/46702/1 "2026-04-09T15:27:08Z")

</div>

##MAC TAHOE26

Processing started

Writing input file to /private/var/folders/c2/7ytv4ycx59z72y4bcl8dfplh0000gn/T/Slicer-liuxy/\_\_SlicerTemp\_\_2026-04-09\_14+44+48.430/total-segmentator-input.nii

Creating segmentations with TotalSegmentator AI…

Total Segmentator arguments: [‘-i’, ‘/private/var/folders/c2/7ytv4ycx59z72y4bcl8dfplh0000gn/T/Slicer-liuxy/\_\_SlicerTemp\_\_2026-04-09\_14+44+48.430/total-segmentator-input.nii’, ‘-o’, ‘/private/var/folders/c2/7ytv4ycx59z72y4bcl8dfplh0000gn/T/Slicer-liuxy/\_\_SlicerTemp\_\_2026-04-09\_14+44+48.430/segmentation’, ‘–device’, ‘cpu’, ‘–ml’, ‘–task’, ‘total’]

If you use this tool please cite: [https://pubs.rsna.org/doi/10.1148/ryai.230024](https://pubs.rsna.org/doi/10.1148/ryai.230024)

Traceback (most recent call last):

File “/Applications/Slicer.app/Contents/lib/Python/bin/TotalSegmentator”, line 8, in

sys.exit(main())

^^^^^^

File “/Applications/Slicer.app/Contents/lib/Python/lib/python3.12/site-packages/totalsegmentator/bin/TotalSegmentator.py”, line 201, in main

totalsegmentator(args.input, args.output, args.ml, args.nr\_thr\_resamp, args.nr\_thr\_saving,

File “/Applications/Slicer.app/Contents/lib/Python/lib/python3.12/site-packages/totalsegmentator/python\_api.py”, line 156, in totalsegmentator

from totalsegmentator.nnunet import nnUNet\_predict\_image # this has to be after setting new env vars

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

File “/Applications/Slicer.app/Contents/lib/Python/lib/python3.12/site-packages/totalsegmentator/nnunet.py”, line 29, in

from totalsegmentator.custom\_trainers import (nnUNetTrainer\_MOSAIC\_1k\_QuarterLR\_NoMirroring,

File “/Applications/Slicer.app/Contents/lib/Python/lib/python3.12/site-packages/totalsegmentator/custom\_trainers.py”, line 35, in

from nnunetv2.training.dataloading.data\_loader import nnUNetDataLoader

ModuleNotFoundError: No module named ‘nnunetv2.training.dataloading.data\_loader’

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<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [April 10, 2026, 1:08am UTC](https://discourse.slicer.org/t/please-help-me-ive-tried-everything-i-known/46702/2 "2026-04-10T01:08:10Z")

</div>

TotalSegmentator has just been fixed on macOS today. Go to nnUNet module and install nnUNet version `>=2.7`:

[![](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/5/c/5cb9db9b16a6ee6eba74973bdd88822bfc8c8155.png) ](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/5/c/5cb9db9b16a6ee6eba74973bdd88822bfc8c8155.png)