Hi @quarkz
at first sight it looks like your system is not able to find ccx_preCICE. Before removing anything from the case:
- you shoud install calculix and preCICE adapter. See for example here
- you shoud have ccx_preCICE now and it must be in your path (e.g. somewhere in .bashrc you should point to it )
- you should run fluid and solid from two different terminals and within the directory where you find run.sh
I hope this helps
Claudio