C2dm Error=missingregistration I Already Put Registration_id To Request

i am working to sent a push message to android phone from my asp.net project and i already put register_id in my code but i handle an error Missing registration, i didnt understand

Solution 1:

Can try this code. I think the problem comes from url and request parameters.

publicvoidSendMessage(string registrationId, string data, string sAuth)
{
    stringcollapseKey= Guid.NewGuid().ToString("n");

    ServicePointManager.ServerCertificateValidationCallback += newRemoteCertificateValidationCallback(ValidateRemoteCertificate);

    stringurl="https://android.apis.google.com/c2dm/send";
    stringparams= HttpUtility.UrlEncode("registration_id=" + registrationId + "&collapse_key=" + collapseKey + "&data.payload=" + data);
    HttpWebRequestrequest= (HttpWebRequest)HttpWebRequest.Create(url);
    request.Method = "POST";
    request.Headers.Add("Authorization", "GoogleLogin auth=" + sAuth);
    //request.ContentLength = 0;  ASCIIEncodingencoding=newASCIIEncoding();
    byte[] buffer = encoding.GetBytes(params);

    StreamnewStream= request.GetRequestStream();
    newStream.Write(buffer, 0, buffer.Length);
    newStream.Close();

    //Reading return Responsetry
    {
        HttpWebResponseresponse= (HttpWebResponse)request.GetResponse();
        if (response.StatusCode == HttpStatusCode.OK)
        {
            StreamresStream= response.GetResponseStream();
            StreamReadersr=newStreamReader(resStream);
            stringvalue= sr.ReadToEnd().ToString();
            Label1.Text = value;
            //Response.Write(sr.ReadToEnd());
            sr.Close();
            resStream.Close();
        }
    }
    catch (Exception ex)
    {
        throw (ex);
    }
}

Solution 2:

If it's first time running your application on your device, then you have to handle first registration id. More details can be found here : http://code.google.com/android/c2dm/index.html

If it's not the case, then you have to take in consideration this issue: "The C2DM server periodically refreshes registration IDs." Witch means that you have to handle each refresh of your registration id.

Hope it helps.

Solution 3:

İ solve the problem like this;

HttpWebRequestrequest= (HttpWebRequest)WebRequest.Create("https://android.clients.google.com/c2dm/send");
        request.Method = "POST";
        request.KeepAlive = false;

        NameValueCollectionpostFieldNameValue=newNameValueCollection();
        postFieldNameValue.Add("registration_id", registrationId);
        postFieldNameValue.Add("collapse_key", "1");
        postFieldNameValue.Add("delay_while_idle", "0");
        postFieldNameValue.Add("data.message", message);

        stringpostData= GetPostStringFrom(postFieldNameValue);
        byte[] byteArray = Encoding.UTF8.GetBytes(postData);

        request.ContentType = "application/x-www-form-urlencoded;charset=UTF-8";
        request.ContentLength = byteArray.Length;

        request.Headers.Add(HttpRequestHeader.Authorization, "GoogleLogin auth=" + authTokenString);

        StreamdataStream= request.GetRequestStream();
        dataStream.Write(byteArray, 0, byteArray.Length);
        dataStream.Close();
        //savas
        ServicePointManager.ServerCertificateValidationCallback += delegate(
                    object
                    sender,
                    System.Security.Cryptography.X509Certificates.X509Certificate
                    pCertificate,
                    System.Security.Cryptography.X509Certificates.X509Chain pChain,
                    System.Net.Security.SslPolicyErrors pSSLPolicyErrors)
        {
            returntrue;
        };
        ////***********WebResponseresponse= request.GetResponse();
        HttpStatusCoderesponseCode= ((HttpWebResponse)response).StatusCode;
        if (responseCode.Equals(HttpStatusCode.Unauthorized) || responseCode.Equals(HttpStatusCode.Forbidden))
        {
            Console.WriteLine("Unauthorized - need new token");
        }
        elseif (!responseCode.Equals(HttpStatusCode.OK))
        {
            Console.WriteLine("Response from web service not OK :");
            Console.WriteLine(((HttpWebResponse)response).StatusDescription);
        }

        StreamReaderreader=newStreamReader(response.GetResponseStream());
        stringresponseLine= reader.ReadLine();
        reader.Close();

Solution 4:

In this method SendMessage(string registrationId, string data, string sAuth) not get notification in Andriod Device and No any error Message , What to do ?