# Error In total Segmentor macOS
**URL:** https://discourse.slicer.org/t/error-in-total-segmentor-macos/47021
**Category:** Support
**Created:** [May 14, 2026, 6:26am UTC](https://discourse.slicer.org/t/error-in-total-segmentor-macos/47021 "2026-05-14T06:26:22Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Gabriel.LA](https://discourse.slicer.org/u/Gabriel.LA)
#### Post date: [May 14, 2026, 6:26am UTC](https://discourse.slicer.org/t/error-in-total-segmentor-macos/47021/1 "2026-05-14T06:26:22Z")
Command ‘[’/Applications/Slicer.app/Contents/bin/../bin/PythonSlicer’, ‘/Applications/Slicer.app/Contents/lib/Python/bin/TotalSegmentator’, ‘-i’, ‘/private/var/folders/3n/nb74wlx17txbbdx1b3cjlwym0000gn/T/Slicer-gabriellunardiaranha/\_\_SlicerTemp\_\_2026-05-13\_20+07+54.798/total-segmentator-input.nii’, ‘-o’, ‘/private/var/folders/3n/nb74wlx17txbbdx1b3cjlwym0000gn/T/Slicer-gabriellunardiaranha/\_\_SlicerTemp\_\_2026-05-13\_20+07+54.798/segmentation’, ‘–device’, ‘cpu’, ‘–ml’, ‘–task’, ‘total’]’ returned non-zero exit status 1.
```auto
```
I’m trying to use Total Segmentor 3D Slicer 10.0 without success. I’ve already updated Python, NuNet, and everything else available in other topics. Thanks.
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### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [May 14, 2026, 6:41am UTC](https://discourse.slicer.org/t/error-in-total-segmentor-macos/47021/2 "2026-05-14T06:41:56Z")
The problem was fixed recently. You need to install Slicer from scratch (remove or rename your current Slicer and install Slicer again) to start from a clean, tested state. Once you installed Slicer, you only need to install TotalSegmentator, then load an image (e.g., CTChest sample data) and it will all work (first time it takes about 5-10 minutes to install all required Python packages).