Hi All,

I was trying to set up binary neutron star mergers following this page --
https://einsteintoolkit.org/gallery/bns/index.html

But I get the error: Missing thorn LSUThorns/NSTracker

In the gallery page says Thorn NSTracker added to ET_2017_06 release
But, I couldn't find it. 

Am I missing something? 
Could someone please help me with this?

Thanks in advance.
-Rahul