# Elastix extension was installed successfully but cannot find in the modules file.

**URL:** <https://discourse.slicer.org/t/elastix-extension-was-installed-successfully-but-cannot-find-in-the-modules-file/4721>\
**Category:** Support\
**Tags:** registration, extensions-manager\
**Created:** [November 11, 2018, 12:32pm UTC](https://discourse.slicer.org/t/elastix-extension-was-installed-successfully-but-cannot-find-in-the-modules-file/4721 "2018-11-11T12:32:26Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Yuling\_Li](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/yuling_li/32/3257_2.png) [@Yuling\_Li](https://discourse.slicer.org/u/Yuling_Li)\
**Post date:** [November 11, 2018, 12:32pm UTC](https://discourse.slicer.org/t/elastix-extension-was-installed-successfully-but-cannot-find-in-the-modules-file/4721/1 "2018-11-11T12:32:26Z")

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Operating system:windows10  
Slicer version:4.11.0  
Expected behavior:  
Actual behavior:

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/e/c/ec532cab12e7d1fbd64131539d049c8ce4bac5ee.png)  
 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/7/a77f6f884de05d092aba07ef766dd16db782a6b1.png)

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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:** [November 11, 2018, 1:07pm UTC](https://discourse.slicer.org/t/elastix-extension-was-installed-successfully-but-cannot-find-in-the-modules-file/4721/2 "2018-11-11T13:07:44Z")

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Uninstall and reinstall the extension. Make sure to wait for “Restart” button in the extension manager and click that (not the “Close” button"). If Restart button is enabled then it indicates that download and installation of the extension is complete.

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**Author:** ![Yuling\_Li](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/yuling_li/32/3257_2.png) [@Yuling\_Li](https://discourse.slicer.org/u/Yuling_Li)\
**Post date:** [November 11, 2018, 1:26pm UTC](https://discourse.slicer.org/t/elastix-extension-was-installed-successfully-but-cannot-find-in-the-modules-file/4721/3 "2018-11-11T13:26:46Z")

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Thx, I did it several times as you said, but it still didn’t work. But other extension modules seems good.

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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:** [November 11, 2018, 2:29pm UTC](https://discourse.slicer.org/t/elastix-extension-was-installed-successfully-but-cannot-find-in-the-modules-file/4721/4 "2018-11-11T14:29:03Z")

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I’ve just tested this with latest nightly on Windows10 and “General registration (Elastix)” shows up correctly after installation.