# Elastix extension error in Nightly version of Slicer

**URL:** <https://discourse.slicer.org/t/elastix-extension-error-in-nightly-version-of-slicer/1396>\
**Category:** Support\
**Tags:** extensions-manager\
**Created:** [November 7, 2017, 7:27pm UTC](https://discourse.slicer.org/t/elastix-extension-error-in-nightly-version-of-slicer/1396 "2017-11-07T19:27:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![roger\_sela](https://avatars.discourse-cdn.com/v4/letter/r/3d9bf3/32.png) [@roger\_sela](https://discourse.slicer.org/u/roger_sela)\
**Post date:** [November 7, 2017, 7:27pm UTC](https://discourse.slicer.org/t/elastix-extension-error-in-nightly-version-of-slicer/1396/1 "2017-11-07T19:27:58Z")

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Hi all,

I am trying to run the Elastix module in the Nightly version of Slicer. I have installed the Elastix bundle through Slicer’s Extension Manager. However, I receive an error message (below) each time I try registration with Elastix. Any advice is appreciated. Thanks!

Volume registration is started in working directory: /var/folders/83/cwh\_fnrj2t35ldgzvlk6\_srh0000gp/T/Slicer/Elastix/20171107\_140201\_188  
Register volumes…  
Error: Elastix not found

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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 7, 2017, 7:56pm UTC](https://discourse.slicer.org/t/elastix-extension-error-in-nightly-version-of-slicer/1396/2 "2017-11-07T19:56:31Z")

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Thanks for reporting this, we’ll investigate this. Until then, you can download and install Elastix package separately and set Slicer to use it (see details here: [https://github.com/lassoan/SlicerElastix/issues/2](https://github.com/lassoan/SlicerElastix/issues/2)).