Index: /issm/trunk/src/m/classes/public/plot/plot_riftfraction.m
===================================================================
--- /issm/trunk/src/m/classes/public/plot/plot_riftfraction.m	(revision 2701)
+++ /issm/trunk/src/m/classes/public/plot/plot_riftfraction.m	(revision 2702)
@@ -6,4 +6,9 @@
 %
 %   See also: PLOTMODEL
+
+%check that there is something in riftproperties
+if isnan(md.riftproperties),
+	error('plot_riftfraction error message: field riftproperies is empty, run the model first')
+end
 
 %process data and model