Index: ../trunk-jpl/src/c/classes/Elements/Element.cpp
===================================================================
--- ../trunk-jpl/src/c/classes/Elements/Element.cpp	(revision 21206)
+++ ../trunk-jpl/src/c/classes/Elements/Element.cpp	(revision 21207)
@@ -1401,7 +1401,7 @@
 void       Element::InputUpdateFromConstant(IssmDouble constant, int name){/*{{{*/
 
 	/*Check that name is an element input*/
-	if(!IsInput(name)) _error_("Enum "<<EnumToStringx(name)<<" is not in IsInput");
+	if(!IsInput(name)) return;
 
 	/*update input*/
 	this->inputs->AddInput(new DoubleInput(name,constant));