# Radiomics doesn't work on macOS Catalina
**URL:** https://discourse.slicer.org/t/radiomics-doesnt-work-on-macos-catalina/11079
**Category:** Radiomics
**Created:** [April 11, 2020, 1:55pm UTC](https://discourse.slicer.org/t/radiomics-doesnt-work-on-macos-catalina/11079 "2020-04-11T13:55:20Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Andrea\_Barucci1](https://discourse.slicer.org/u/Andrea_Barucci1)
#### Post date: [April 11, 2020, 1:55pm UTC](https://discourse.slicer.org/t/radiomics-doesnt-work-on-macos-catalina/11079/1 "2020-04-11T13:55:20Z")
Dear all,
I apologise if this question has already found an answer.
I have not been able to find the solution to this problem.
Despite the version of 3D Slicer I’m trying to run I always face the same error when trying to extract features:
Feature calculation failed.
Feature calculation failed.
Traceback (most recent call last):
File “/Applications/Slicer.app/Contents/Extensions-27931/SlicerRadiomics/lib/Slicer-4.10/qt-scripted-modules/SlicerRadiomics.py”, line 405, in onApplyButton
self.onFinished)
File “/Applications/Slicer.app/Contents/Extensions-27931/SlicerRadiomics/lib/Slicer-4.10/qt-scripted-modules/SlicerRadiomics.py”, line 732, in runCLI
with open(parameterFile, mode=‘w’) as parameterFileFP:
IOError: [Errno 2] No such file or directory: u’/var/folders/2m/y\_0dhzcd4wd891w6s6xht4tm0000gn/T/Slicer-andrea/RadiomicsLogicParams.json’
I was able to perform this extraction until I changed operating system, jumping in macOS 10.15.3 Catalina.
Do you know if this problem can be rated to the operating system or instead southing is going wrong in my installation?
Please consider that I’m not an expert user.
Thank you very much in advice for your support
Best regards
Andrea from Italy
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### Author:  [@pieper](https://discourse.slicer.org/u/pieper)
#### Post date: [April 12, 2020, 4:08pm UTC](https://discourse.slicer.org/t/radiomics-doesnt-work-on-macos-catalina/11079/2 "2020-04-12T16:08:14Z")
Hi -
Probably upgrading the OS changed the temp directory logic a bit. By default you get the OS assigned tmp and it gets saved in the settings (e.g. so you could change it to a different disk or something if needed).
You can change it in the Application Settings (in Edit menu).
Let us know if that doesn’t work.
