cannot find constructor for expandedId

[Avdoot]

Hello,
I am totally new to OPC-UA architecture. I have written few test cases to test different OPC-UA servers. I want to check the opensecurechannelrequest of a server. Below you may find the message format of opensecurechannelrequest. The request throws an error "Cannot find constructor for expandedId". Can anyone tell me where I am going wrong? Any input is highly appreciated.

Thank You in advance.

With Regards,
Avdoot Chalke

Code: Select all

{ header := { 
    messageType := 5132367, 
    chunkType := 70, 
    messageSize := 132 
  }, 
  transportMessage := omit, 
  securityChannelId := 0, 
  securePolicyUri := { 
    realArray := { 
      arrayLength := 47, 
      arrayValues := { 104, 116, 116, 112, 58, 47, 47, 111, 112, 99, 102, 111, 117, 110, 100, 97, 116, 105, 111, 110, 46, 111, 114, 103, 47, 85, 65, 47, 83, 101, 99, 117, 114, 105, 116, 121, 80, 111, 108, 105, 99, 121, 35, 78, 111, 110, 101} 
    } 
  }, 
  senderCertificate := { 
    nullArray := { 
      arrayLength := -2147483647 
    } 
  }, 
  receiverCertificateThumbprint := { 
    nullArray := { 
      arrayLength := -2147483647 
    } 
  }, 
  securityTokenId := omit, 
  sequenceHeader := { 
    SequenceNumber := 1, 
    RequestId := 1 
  }, 
  
  //Body
  { 
    encodingByte := 1, 
    namespaceIndex := 0, 
    nodeValue := 446, 
    list := { 
      OpenSecureChannelRequest := { 
        requestHeader := { 
          authenticationToken := { 
            mask := 0, 
            namespaceUriBit := 0, 
            serverIndexBit := 0, 
            reservedBit1 := 0, 
            reservedBit2 := 0, 
            IdType := { 
              twoByte := { 
                nodeValue := 0 
              } 
            } 
          }, 
          timestamp := 131577074230530000, 
          requestHandle := 1, 
          returnDiagnostics := 0, 
          auditEntryId := { 
            nullString := { 
              arrayLength := -2147483647 
            } 
          }, 
          timeoutHint := 0, 
          additionalHeader := { 
            typeId := { 
              node := { 
                mask := 0, 
                namespaceUriBit := 0, 
                serverIndexBit := 0, 
                reservedBit1 := 0, 
                reservedBit2 := 0, 
                IdType := { 
                  twoByte := { 
                    nodeValue := 0 
                  } 
                } 
              }, 
              namespaceUri := omit, 
              serverIndex := omit 
            }, 
            Value := 0 
          } 
        }, 
        clientProtocolVersion := 0, 
        requestType := ISSUE_0 (0), 
        securityMode := NONE_1 (1), 
        clientNonce := { 
          nullByteString := { 
            arrayLength := -2147483647 
          } 
        }, 
        requestedLifetime := 600000 
      } 
    } 
  }