In case loading an operand specification fails from osal,
print a more verbose error message that shows what really went wrong
@@ -424,7 +424,7 @@ Operand::loadState(const ObjectState* state) {
} catch (Exception& e) {
string message =
"Error while loading operation operand settings. "
- "An error in the operation format?";
+ "An error in the operation format?" + e.errorMessageStack();
ObjectStateLoadingException newe(
__FILE__, __LINE__, __func__, message);
newe.setCause(e);
