# how to install Slicer-DTI-ALPS extension

**URL:** <https://discourse.slicer.org/t/how-to-install-slicer-dti-alps-extension/41713>\
**Category:** Support\
**Created:** [February 15, 2025, 12:46pm UTC](https://discourse.slicer.org/t/how-to-install-slicer-dti-alps-extension/41713 "2025-02-15T12:46:11Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![shms1749](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/shms1749/32/79458_2.png) [@shms1749](https://discourse.slicer.org/u/shms1749)\
**Post date:** [February 15, 2025, 12:46pm UTC](https://discourse.slicer.org/t/how-to-install-slicer-dti-alps-extension/41713/1 "2025-02-15T12:46:11Z")

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I’m new to using Slicer. I want to install Slicer-DTI-ALPS extension, I downloaded its files from github and I don’t know how to install it in Slicer 3D 5.8 software. Is there anyone did it before?

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [February 15, 2025, 1:11pm UTC](https://discourse.slicer.org/t/how-to-install-slicer-dti-alps-extension/41713/2 "2025-02-15T13:11:22Z")

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It should be in the extension manager, but it looks like there’s a build error:

> **[CDash](https://slicer.cdash.org/viewBuildError.php?buildid=3690013)**
>
> CDash is an open source, web-based software testing server. CDash aggregates, analyzes, and displays the
> results of software testing processes submitted from clients located around the world. CDash is a part of a
> ...

I suggest contacting the developers via their github page: [GitHub - LOAMRI/Slicer-DTI-ALPS: Slicer Module to calculate the diffusion tensor image analysis along the perivascular space (DTI-ALPS)](https://github.com/LOAMRI/Slicer-DTI-ALPS)

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<div class="post-metadata">

**Author:** ![shms1749](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/shms1749/32/79458_2.png) [@shms1749](https://discourse.slicer.org/u/shms1749)\
**Post date:** [March 4, 2025, 6:12am UTC](https://discourse.slicer.org/t/how-to-install-slicer-dti-alps-extension/41713/3 "2025-03-04T06:12:04Z")

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I found the extension in the older version (5.6.2), but I don’t know why it is not in the newer versions. Does anyone know?