# Build Slicer in apple silicon - error "arm64"

**URL:** <https://discourse.slicer.org/t/build-slicer-in-apple-silicon-error-arm64/39549>\
**Category:** Support\
**Created:** [October 5, 2024, 6:48pm UTC](https://discourse.slicer.org/t/build-slicer-in-apple-silicon-error-arm64/39549 "2024-10-05T18:48:20Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**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:** [October 5, 2024, 7:18pm UTC](https://discourse.slicer.org/t/build-slicer-in-apple-silicon-error-arm64/39549/2 "2024-10-05T19:18:32Z")

</div>

I haven’t tried building on mac arm in a long time, so more recent changes in the dependencies may have broken things.

One idea is to turn off this flag:

> <https://github.com/Slicer/Slicer/blob/main/SuperBuild/External_VTK.cmake#L9>

---

_[View the full topic](https://discourse.slicer.org/t/build-slicer-in-apple-silicon-error-arm64/39549)._