Index: /issm/trunk/src/c/modules/MassFluxx/MassFluxx.cpp
===================================================================
--- /issm/trunk/src/c/modules/MassFluxx/MassFluxx.cpp	(revision 6683)
+++ /issm/trunk/src/c/modules/MassFluxx/MassFluxx.cpp	(revision 6684)
@@ -36,5 +36,5 @@
 
 	/*First, figure out which segment to compute our mass flux on. Start with retrieving qmu_mass_flux_segments: */
-	parameters->FindParam(&array,&M,&mdims_array,&ndims_array,QmuMassFluxSegmentsEnum);
+	if(!parameters->FindParam(&array,&M,&mdims_array,&ndims_array,QmuMassFluxSegmentsEnum))_error_(" could not find QmuMassFluxSegmentsEnum");
 
 	/*Retrieve index of segments being used for MassFlux computation: */