Hi,
From last Spire.doc hot fix i getting error when i try do merge docs
Exception details: An item with the same key has already been added. Source: mscorlib Stack trace: at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) at Spire.Doc.Documents.Style.CloneRelationsTo(Document doc, OwnerHolder nextOwner) at Spire.Doc.Collections.StyleCollection.Add(IStyle style) at Spire.Doc.Documents.Style.ᜁ(Document A_0) at Spire.Doc.Fields.ParagraphBase.CloneRelationsTo(Document doc, OwnerHolder nextOwner) at Spire.Doc.Fields.TextRange.CloneRelationsTo(Document doc, OwnerHolder nextOwner) at Spire.Doc.Documents.Paragraph.CloneRelationsTo(Document doc, OwnerHolder nextOwner) at Spire.Doc.Body.CloneRelationsTo(Document doc, OwnerHolder nextOwner) at Spire.Doc.Section.CloneRelationsTo(Document doc, OwnerHolder nextOwner) at Spire.Doc.Collections.DocumentObjectCollection.OnInsert(Int32 index, DocumentObject entity) at Spire.Doc.Collections.DocumentObjectCollection.Add(IDocumentObject entity) at Spire.Doc.Collections.SectionCollection.Add(ISection section)