FIX: issue #108 (Wrong error condition/message with nested structures)
FIX: issue #108 (Wrong error condition/message with nested structures)

rheber/red,vehar/red,red-eco/red,vehar/red,NikolayShubenkovProgSchool/red,iArnold/red,NikolayShubenkovProgSchool/red,rheber/red,iArnold/red,red-eco/red