XML NF-e "The value of the 'Algorithm' attribute does not equal its fixed value"

Question

Bom dia, 

Quando valido o schema do XML para manifestação do destinatário estou recebendo o erro:

'The value of the 'Algorithm' attribute does not equal its fixed value'.

Segue código que estou utilizando para assinar o XML:

foreach (XmlNode no in xml.GetElementsByTagName("infEvento"))
            {
                XmlDocument xmlToSign = new XmlDocument();
                xmlToSign.LoadXml(no.OuterXml);

                SignedXml docXML = new SignedXml(xmlToSign);
                docXML.SigningKey = NFe_Rec.ClientCredentials.ClientCertificate.Certificate.PrivateKey;                
                Reference refer = new Reference();
                refer.Uri = "#" + no.Attributes["Id"].Value;
                refer.AddTransform(new XmlDsigEnvelopedSignatureTransform());
                refer.AddTransform(new XmlDsigC14NTransform());                
                docXML.AddReference(refer);

                KeyInfo ki = new KeyInfo();                
                ki.AddClause(new KeyInfoX509Data(NFe_Rec.ClientCredentials.ClientCertificate.Certificate));
                docXML.KeyInfo = ki;

                docXML.ComputeSignature();
                i++;                
                xml.ChildNodes[1].ChildNodes[i].AppendChild(xml.ImportNode(docXML.GetXml(), true));
            }

Como posso corrigir este problema?

Grato,

Renan Paiva