# VMTK extension build error

**URL:** <https://discourse.slicer.org/t/vmtk-extension-build-error/42765>\
**Category:** Support\
**Created:** [May 1, 2025, 8:24pm UTC](https://discourse.slicer.org/t/vmtk-extension-build-error/42765 "2025-05-01T20:24:45Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)\
**Post date:** [May 1, 2025, 8:29pm UTC](https://discourse.slicer.org/t/vmtk-extension-build-error/42765/2 "2025-05-01T20:29:21Z")

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See the following thread where @chir.set needs to finalize compatibility with VTK 9.4.

> [@SlicerVMTK not building for SlicerPreview on cdash](https://discourse.slicer.org/t/slicervmtk-not-building-for-slicerpreview-on-cdash/42605):
>
> SlicerVMTK is not building on cdash for SlicerPreview while it does build for SlicerStable. The error messages relate to the VMTK library itself. FYI, hoping for an investigation.

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_[View the full topic](https://discourse.slicer.org/t/vmtk-extension-build-error/42765)._