ETK group,
 
I am trying to run a binary black hole example on CarpetX and run into a simple error.
 
Error: Thorn Z4c not found.
 
I ran the radiative.par example of WavetoyX fine. I added Z4c to the thorn list and it says again.
 
Error: Thorn Z4c not found.
 
I reloaded and updated everything, but still get the issue. The machine is a DGX Spark
running Ubuntu. I appreciate any suggestions. 
 
Thanks for  your help.
 
Keith