--- loncom/homework/lonhomework.pm	2007/09/10 13:31:39	1.274
+++ loncom/homework/lonhomework.pm	2007/10/05 18:08:40	1.275
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # The LON-CAPA Homework handler
 #
-# $Id: lonhomework.pm,v 1.274 2007/09/10 13:31:39 www Exp $
+# $Id: lonhomework.pm,v 1.275 2007/10/05 18:08:40 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -788,6 +788,14 @@ sub analyze {
 			$i++;
 		    }
 		}
+		if (!keys(%{ $analyze{$part.'.answer'} })) {
+		    my $answer_part = 
+			['<span class="LC_error">'.&mt('Error').'</span>'];
+		    $seedexample{join("\0",$part,0,@{$answer_part})}=
+			$thisseed;
+		    push( @{ $overall{$part.'.answer'}[0] },
+			  $answer_part);
+		}
 	    }
 	}
     }