DTIPrep installation

Dear 3D Slicer experts
I am pretty new in 3d Slicer. I want to use DTIPrep but it is not in the list of extensions to be installed. I have downloaded it separately but I don’t know how to install it.
Any help appreciated.

Nahid

Here is a link to Slicer packages from 2018-01-10 which should have the extension available:

macOS: http://slicer.cdash.org/viewFiles.php?buildid=1173431
linux: http://slicer.cdash.org/viewFiles.php?buildid=1173432
(windows does not seem to be building recently)

cc @juanprietob, if you have a chance to take a look, I think this commit, possibly combined with Slicer core changes, broke the extension build starting from 01-11 (here’s the CDash: http://slicer.cdash.org/index.php?project=Slicer4&date=2018-01-11&filtercount=1&showfilters=1&field1=label&compare1=63&value1=DTIPrep).

I am running Slicer 4.11.0-2019-5-01 and am unable to see DTIPrep as an extension to add to the program. What is the best way to add the extension?