CRM Customization Import failed Error: Invalid name prefix

While importing the customization from development(upgraded from 3.0 to crm 4.0) to QA Server(fresh installation CRM 4.0) i was getting this error: “Import failed: opportunity_new_dataaudit: Invalid name prefix.”  It was giving the error on particular relationship: “opportunity_new_dataaudit” I solved this problem as open the customization.xml in edit mode its look like as <EntityRelationship Name=”Opportunity_New_DataAudit“> <EntityRelationshipType>OneToMany</EntityRelationshipType> <ReferencingEntityName>New_DataAudit</ReferencingEntityName> <ReferencedEntityName>Opportunity</ReferencedEntityName> [...]