# Why does theTOMAAT extension display "not loaded" after downloading?

**URL:** <https://discourse.slicer.org/t/why-does-thetomaat-extension-display-not-loaded-after-downloading/22649>\
**Category:** Support\
**Tags:** extensions-manager\
**Created:** [March 23, 2022, 12:35pm UTC](https://discourse.slicer.org/t/why-does-thetomaat-extension-display-not-loaded-after-downloading/22649 "2022-03-23T12:35:09Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![linda](https://avatars.discourse-cdn.com/v4/letter/l/67e7ee/32.png) [@linda](https://discourse.slicer.org/u/linda)\
**Post date:** [March 23, 2022, 12:35pm UTC](https://discourse.slicer.org/t/why-does-thetomaat-extension-display-not-loaded-after-downloading/22649/1 "2022-03-23T12:35:09Z")

</div>

Problem report for Slicer 4.11.20210226 win-amd64: [please describe expected and actual behavior]  
As shown in the figure.

 ![微信图片_20220323143549](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/6/a/6acc43eb429c34f41b9c9cb9b9f3535c61c2ed4e.png)  
 ![微信图片_20220323143616](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/d/8/d8909fcac4de3e85ff87a4d75c1e1c5de93c1423.png)  
Why?