tomcat - GCM error sending messages at server -



tomcat - GCM error sending messages at server -

i next error when trying send message gcm demo server. code same supplied @ developer.android.com/google/gcm/demo.html , it's run on tomcat. device gets registered on server , shows "1 device(s) registered!". next error when "send message" button pressed. (i have placed api key received https://code.google.com/apis/console/ in "api.key" file.)

apache tomcat/7.0.35 - error study http status 500 - http status code: 401

type exception report

message http status code: 401

description server encountered internal error prevented fulfilling request.

exception com.google.android.gcm.server.invalidrequestexception: http status code: 401 com.google.android.gcm.server.sender.sendnoretry(sender.java:177) com.google.android.gcm.server.sender.send(sender.java:121) com.google.android.gcm.demo.server.sendallmessagesservlet.dopost(sendallmessagesservlet.java:82) javax.servlet.http.httpservlet.service(httpservlet.java:647) javax.servlet.http.httpservlet.service(httpservlet.java:728)

note total stack trace of root cause available in apache tomcat/7.0.35 logs.

apache tomcat/7.0.35

just re-create gcm-demo.war apache webapps folder , run.definitely run.

tomcat push-notification api-key google-cloud-messaging

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