Index: /issm/trunk/src/m/classes/organizer.m
===================================================================
--- /issm/trunk/src/m/classes/organizer.m	(revision 8150)
+++ /issm/trunk/src/m/classes/organizer.m	(revision 8151)
@@ -122,4 +122,8 @@
 		 function savemodel(org,md) % {{{1
 
+			 %check
+			 if (org.num==0), error('Cannot save model because organizer (org) is empty! Make sure you did not skip any perform call'); end
+			 if (org.num>length(org.steps)), error('Cannot save model because organizer (org) is not up to date!'); end
+
 			 name=[org.repository '/' org.prefix org.steps(org.num).string ];
 			 disp(['saving model as: ' name]);