ERROR: [NSD validation] type of DA/BDA 'Check' (line = 679) is not Check ERROR: [NSD validation] DA dbRef is mandatory in DOType (line 626) with LNClass MV because sibling db is present ERROR: [NSD validation] DA dbRef is mandatory in DOType (line 633) with LNClass CMV because sibling db is present ERROR: [SemanticConstraints] ConnectedAP (apName=AP1) (line 11) does not refer an existing AccessPoint in IED section ERROR: [SemanticConstraints] iedName attribute shall refer to an existing IED in ConnectedAP (line 11). Current value is GW Validation done