# The SlicerDMRI extension is currently unavailable.

**URL:** <https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12276>\
**Category:** Support\
**Tags:** extensions-manager\
**Created:** [June 29, 2020, 4:19pm UTC](https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12276 "2020-06-29T16:19:18Z")\
**Posts on this page:** 6\
**Page:** 2

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**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:** [July 27, 2020, 12:41am UTC](https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12276/22 "2020-07-27T00:41:14Z")

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@fpsiddiqui91 it looks llike you are doing the right thing, just add those paths pointing to your local build.

[I fixed a couple things](https://github.com/pnlbwh/ukftractography/pull/130) in the windows build of ukf, but it’s still not quite right I’m afraid.

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**Author:** ![fpsiddiqui91](https://avatars.discourse-cdn.com/v4/letter/f/53a042/32.png) [@fpsiddiqui91](https://discourse.slicer.org/u/fpsiddiqui91)\
**Post date:** [July 27, 2020, 8:42am UTC](https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12276/23 "2020-07-27T08:42:03Z")

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Yeah, It worked. I actually have to add “build\_dir/lib/Slicer-X.Y/module\_type/Release” Folder.

Regarding UKF. I managed to load the module but unfortunately it’s giving an error of unknown exception.

```
UKF Tractography command line:

C:/Users/20191382/Documents/Slicer_Extensions/UKF_build3/lib/Slicer-4.11/cli-modules/Release/UKFTractography.exe --dwiFile C:/Users/20191382/AppData/Local/Temp/Slicer/CABHC_vtkMRMLDiffusionWeightedVolumeNodeB.nhdr --seedsFile C:/Users/20191382/AppData/Local/Temp/Slicer/CABHC_vtkMRMLLabelMapVolumeNodeD.nhdr --labels 1 --maskFile C:/Users/20191382/AppData/Local/Temp/Slicer/CABHC_vtkMRMLLabelMapVolumeNodeC.nhdr --tracts C:/Users/20191382/AppData/Local/Temp/Slicer/CABHC_vtkMRMLFiberBundleNodeB.vtp --seedsPerVoxel 1 --seedingThreshold 0.18 --stoppingFA 0.15 --stoppingThreshold 0.1 --numThreads -1 --numTensor 2 --stepLength 0.3 --Qm 0 --recordLength 0.9 --maxHalfFiberLength 250 --recordFA --recordTensors --Ql 0 --Qw 0 --Qkappa 0.01 --Qvic 0.004 --Rs 0 --sigmaSignal 0 --maxBranchingAngle 0 --minBranchingAngle 0 --minGA 10000

UKF Tractography terminated with an unknown exception.
```

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<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:** [July 27, 2020, 2:33pm UTC](https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12276/24 "2020-07-27T14:33:20Z")

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Hmm, for this we may need to go back to the debug build.

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**Author:** ![ljod](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/ljod/32/652_2.png) [@ljod](https://discourse.slicer.org/u/ljod)\
**Post date:** [July 28, 2020, 1:27pm UTC](https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12276/25 "2020-07-28T13:27:06Z")

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Hi Steve and all. I sent an email to ask Yogesh to accept your pull request for UKF.

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**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:** [July 28, 2020, 1:51pm UTC](https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12276/26 "2020-07-28T13:51:45Z")

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Thanks @ljod - there’s still a link error for me on the windows release build. I hope someone can suggest a fix.

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<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:** [July 29, 2020, 7:59pm UTC](https://discourse.slicer.org/t/the-slicerdmri-extension-is-currently-unavailable/12276/27 "2020-07-29T19:59:46Z")

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So I believe this is the current state:

UKF is available for Windows today in the preview builds (not 4.10 and it probably won’t be fixable there).

There’s an issue with SlicerDMRI for 4.10 should be working tomorrow (we hope). DMRI is available for windows and linux for today’s preview,. There was an issue with mac builds last night, but probably an the slightly older version from the download page will work.

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