# Latest build - VTKv9 step requires git-lfs

**URL:** <https://discourse.slicer.org/t/latest-build-vtkv9-step-requires-git-lfs/2325>\
**Category:** Development\
**Created:** [March 15, 2018, 2:11pm UTC](https://discourse.slicer.org/t/latest-build-vtkv9-step-requires-git-lfs/2325 "2018-03-15T14:11:28Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![hherhold](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/hherhold/32/12199_2.png) [@hherhold](https://discourse.slicer.org/u/hherhold)\
**Post date:** [March 15, 2018, 2:11pm UTC](https://discourse.slicer.org/t/latest-build-vtkv9-step-requires-git-lfs/2325/1 "2018-03-15T14:11:28Z")

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It looks like the changes for VTKv9 require git-lfs to be installed (from HomeBrew on mac, at least).

I can update the build docs to note this if this is a permanent change? Let me know.

Thanks!

-Hollister

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**Author:** ![jcfr](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jcfr/32/17825_2.png) [@jcfr](https://discourse.slicer.org/u/jcfr)\
**Post date:** [March 15, 2018, 3:04pm UTC](https://discourse.slicer.org/t/latest-build-vtkv9-step-requires-git-lfs/2325/2 "2018-03-15T15:04:44Z")

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Hi Hollister,

I will look into removing this dependency. Or see if it can be optional.

Jc

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**Author:** ![che85](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/che85/32/636_2.png) [@che85](https://discourse.slicer.org/u/che85)\
**Post date:** [April 4, 2018, 8:18pm UTC](https://discourse.slicer.org/t/latest-build-vtkv9-step-requires-git-lfs/2325/3 "2018-04-04T20:18:45Z")

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Hi guys,

I am getting the following error while building Slicer on MacOS even though I installed git-lfs from brew.

```
HEAD is now at 0f8cf0373d... Merge topic 'clipping_plane_uniform'
Submodule 'VTK-m' (https://gitlab.kitware.com/vtk/vtk-m.git) registered for path 'ThirdParty/vtkm/vtk-m'
Cloning into '/Users/christian/sources/cpp/Slicer/cmake-build-debug/VTKv9/ThirdParty/vtkm/vtk-m'...
git-lfs filter-process: git-lfs: command not found
fatal: The remote end hung up unexpectedly
Unable to checkout '6a908cc9da6076a42d41b9397ad71f56a1f69a70' in submodule path 'ThirdParty/vtkm/vtk-m'
CMake Error at VTKv9-prefix/tmp/VTKv9-gitclone.cmake:93 (message):
Failed to update submodules in:
'/Users/christian/sources/cpp/Slicer/cmake-build-debug/VTKv9'

```

Any thoughts?

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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:** [April 6, 2018, 12:33am UTC](https://discourse.slicer.org/t/latest-build-vtkv9-step-requires-git-lfs/2325/4 "2018-04-06T00:33:12Z")

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Can you clone the VTK git repository manually?