Index: ../trunk-jpl/src/c/shared/Exp/exp.h
===================================================================
--- ../trunk-jpl/src/c/shared/Exp/exp.h	(revision 21034)
+++ ../trunk-jpl/src/c/shared/Exp/exp.h	(revision 21035)
@@ -79,7 +79,7 @@
 
 	/*open domain outline file for reading: */
 	if ((fid=fopen(domainname,"r"))==NULL){
-		_error_("could not find domain file " << domainname); 
+		_error_("could not find file \"" << domainname<<"\". Make sure that the file and path provided exist."); 
 	}
 
 	/*Do a first pass through the domainname file, to figure out how many profiles we need to read: */