# VMTK extension fails to build for preview

**URL:** <https://discourse.slicer.org/t/vmtk-extension-fails-to-build-for-preview/30355>\
**Category:** VMTK\
**Created:** [July 2, 2023, 7:49pm UTC](https://discourse.slicer.org/t/vmtk-extension-fails-to-build-for-preview/30355 "2023-07-02T19:49:42Z")\
**Posts on this page:** 1\
**Showing post:** 2

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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:** [July 3, 2023, 7:39pm UTC](https://discourse.slicer.org/t/vmtk-extension-fails-to-build-for-preview/30355/2 "2023-07-03T19:39:11Z")

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Thank you for reporting. We’ve noticed this, too, and working on a fix. I expect it will work again by the end of this week.

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_[View the full topic](https://discourse.slicer.org/t/vmtk-extension-fails-to-build-for-preview/30355)._