Comment (by Roland Haas):

Let me be probe a bit more here. Which is he exact thorn list that you pass to simfacotyr (not GetComponents)? Could you maybe attach it to the ticket (otherwise we are mostly just guessing)? I am asking because you must not use the file nsnstohmns.th that GetComponents dropped into the directory it ran in (so simfactory/bin/sim build --thornllist ../nsnstohmns.th is incorrect) and you must instead use the one GetComponents writes to thornlists/nsnstohmns.th which has the !INCLUDE directive resolved. The one downloaded looks like so:

# Component list for the Einstein Toolkit <http://einsteintoolkit.org/>
# $Revision$
# $Date$
# $HeadURL$

!CRL_VERSION = 1.0

!INCLUDE = https://bitbucket.org/einsteintoolkit/manifest/raw/ET_2021_11/einsteintoolkit--

Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2176/test-binary-neutron-star-example