# OpenCV extension missing from latest stable and nightly versions

**URL:** <https://discourse.slicer.org/t/opencv-extension-missing-from-latest-stable-and-nightly-versions/4771>\
**Category:** Support\
**Tags:** opencv\
**Created:** [November 15, 2018, 10:06pm UTC](https://discourse.slicer.org/t/opencv-extension-missing-from-latest-stable-and-nightly-versions/4771 "2018-11-15T22:06:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![RebeccaHisey](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/rebeccahisey/32/77323_2.png) [@RebeccaHisey](https://discourse.slicer.org/u/RebeccaHisey)\
**Post date:** [November 15, 2018, 10:06pm UTC](https://discourse.slicer.org/t/opencv-extension-missing-from-latest-stable-and-nightly-versions/4771/1 "2018-11-15T22:06:16Z")

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Operating system: windows 10  
Slicer version: 4.10.0 (stable)

The slicer openCV extension appears to be missing from the latest stable (4.10.0, downloaded on 15/11/2018) and any of recent the nightly builds (tried versions from 13/11/2018, 14/11/2018, and 15/11/2018). Any reason behind this?

Thanks,

Rebecca Hisey

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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 16, 2018, 4:25am UTC](https://discourse.slicer.org/t/opencv-extension-missing-from-latest-stable-and-nightly-versions/4771/2 "2018-11-16T04:25:05Z")

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I’ve submitted a pull request with the fix: [https://github.com/Slicer/SlicerOpenCV/pull/56](https://github.com/Slicer/SlicerOpenCV/pull/56)

Once the fix is merged, SlicerOpenCV extension will be available for both preview and stable versions.

@fedorov @jcfr

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**Author:** ![fedorov](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/fedorov/32/14_2.png) [@fedorov](https://discourse.slicer.org/u/fedorov)\
**Post date:** [November 16, 2018, 12:00pm UTC](https://discourse.slicer.org/t/opencv-extension-missing-from-latest-stable-and-nightly-versions/4771/3 "2018-11-16T12:00:52Z")

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Thank you, I merged the PR