Since preCICE v3.2.0, preCICE has more refined error handling via exceptions. However, these might give a very bad impression to the user, if not handled correctly, as the (often very clear) error message is accompanied by a stack trace that is not relevant for the user (and for this reason, I am adding the bug label here).

Example:

wild-exception.txt

We should wrap the calls to the preCICE API with exception handlers. Example (by @fsimonis in the developers chat):

void myfunction() 
try {
  // boom code
} except (precice::Error& e) {
  // make error digestible for solver user
  std::exit(1);
}

This would be a backwards-compatible change.