# Extension "Radiomics" does not work in Slicer version 4.13.0 on MacBook

**URL:** <https://discourse.slicer.org/t/extension-radiomics-does-not-work-in-slicer-version-4-13-0-on-macbook/14088>\
**Category:** Support\
**Tags:** dicom, radiomics\
**Created:** [October 16, 2020, 10:13pm UTC](https://discourse.slicer.org/t/extension-radiomics-does-not-work-in-slicer-version-4-13-0-on-macbook/14088 "2020-10-16T22:13:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![iboeth](https://avatars.discourse-cdn.com/v4/letter/i/71c47a/32.png) [@iboeth](https://discourse.slicer.org/u/iboeth)\
**Post date:** [October 16, 2020, 10:13pm UTC](https://discourse.slicer.org/t/extension-radiomics-does-not-work-in-slicer-version-4-13-0-on-macbook/14088/1 "2020-10-16T22:13:52Z")

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Operating system: MacOSCatalina Version 10.15.7  
Slicer version: 4.13.0-2020-10-15  
Expected behavior: Download Radiomics-Extension  
Actual behavior:  
Please excuse my basic question.  
I tried to install Radiomics-Extension in 3D-Slicer all over the week.  
As I read on the website, I have to install the “Unstable Version” of 3D-Slicer - and so I did. But when I try to import DICOM-Data, the following picture appears.  
Additionally, I am not able to install any Extension…

So I downloaded the “Stable” Version - now, it´s easy to import DICOM-Data, but it is just possible installing “RadiomicsCLI”.What can I do?

 ![44805C1F-657F-400E-9A9B-2ECE16C90495](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/7/9/79c2a2bdd4f85ed6a3dea11d14c98faba469897f.jpeg)

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**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:** [October 16, 2020, 10:15pm UTC](https://discourse.slicer.org/t/extension-radiomics-does-not-work-in-slicer-version-4-13-0-on-macbook/14088/2 "2020-10-16T22:15:21Z")

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As we indicated on the download page, the current Slicer Preview Release (Slicer-4.13) is not stable yet. Use the latest stable release instead.

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**Author:** ![iboeth](https://avatars.discourse-cdn.com/v4/letter/i/71c47a/32.png) [@iboeth](https://discourse.slicer.org/u/iboeth)\
**Post date:** [October 16, 2020, 10:32pm UTC](https://discourse.slicer.org/t/extension-radiomics-does-not-work-in-slicer-version-4-13-0-on-macbook/14088/3 "2020-10-16T22:32:28Z")

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Thanks for your immediate support!  
Does that mean that “RadiomicsCLI” is the equivalent, or rather the previous version of “Radiomics”?