The prefix '' cannot be redefined from '' to 'http://www.sitemaps.org/schemas/sitemap/0.9' within the same start element tag
Try this:
Const siteMapNamespace As String = "http://www.sitemaps.org/schemas/sitemap/0.9"Dim writer As XmlWriter = XmlWriter.Create(FileLocation + "StaticUrls3.xml")Dim urlList As New List(Of String)urlList.Add("link1")urlList.Add("link2")urlList.Add("link3") writer.WriteStartDocument()writer.WriteStartElement("urlset", siteMapNamespace)For Each aUrl As String In urlList writer.WriteStartElement("url", siteMapNamespace) writer.WriteElementString("loc", aUrl) writer.WriteEndElement()Nextwriter.WriteEndElement()writer.WriteEndDocument()writer.Close()