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  <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;">ETK group,</div>
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  <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;">I am trying to run a binary black hole example on CarpetX and run into a simple error.</div>
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   <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;">Error: Thorn Z4c not found.</div>
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  <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;">I ran the radiative.par example of WavetoyX fine. I added Z4c to the thorn list and it says again.</div>
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  <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;">Error: Thorn Z4c not found.</div>
  <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;"> </div>
  <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;">I reloaded and updated everything, but still get the issue. The machine is a DGX Spark</div>
  <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;">running Ubuntu. I appreciate any suggestions. </div>
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  <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;">Thanks for  your help.</div>
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  <div class="default-style" style="font-family: -apple-system,BlinkMacSystemFont,helvetica,sans-serif;">Keith</div>
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