I have the same error using dev server. If you deploy your app to production server, below error log shows channel service is not enable.
exception: com.google.apphosting.api.ApiProxy $FeatureNotEnabledException: The channel service is not enabled. It seems we have to patiently wait:) On Jul 20, 10:36 am, Daniel Guermeur <[email protected]> wrote: > Thanks for the tip about channel.js. This is what I needed. > > Now I get an error when pushing a message to a client. I get this: > > com.google.appengine.api.channel.ChannelFailureException: An > unexpected error occurred. > Caused by: com.google.apphosting.api.ApiProxy$ApplicationException: > ApplicationError: 2: > > Here is the stack trace. Let me know of any ideas you might have. > > Thanks! > Daniel > > SEVERE: Failed to push the message > com.metadot.book.stalkrapp.shared.mess...@1010a3b to client channel- > [email protected] > com.google.appengine.api.channel.ChannelFailureException: An > unexpected error occurred. > at > com.google.appengine.api.channel.ChannelServiceImpl.sendMessage(ChannelServiceImpl.java: > 59) > at > com.metadot.book.stalkrapp.server.PushServer.sendMessageToOneUser(PushServer.java: > 82) > at > com.metadot.book.stalkrapp.server.FriendsServiceImpl.getFriend(FriendsServiceImpl.java: > 283) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: > 39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: > 25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java: > 100) > at > com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java: > 562) > at > com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java: > 188) > at > com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java: > 224) > at > com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java: > 62) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 511) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1166) > at > com.metadot.book.stalkrapp.server.servlets.LoginFilter.doFilter(LoginFilter.java: > 31) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java: > 51) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java: > 43) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java: > 122) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1157) > at > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: > 388) > at > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: > 216) > at > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: > 182) > at > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: > 765) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 418) > at > com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java: > 70) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at com.google.appengine.tools.development.JettyContainerService > $ApiProxyHandler.handle(JettyContainerService.java:349) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 152) > at org.mortbay.jetty.Server.handle(Server.java:326) > at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 542) > at org.mortbay.jetty.HttpConnection > $RequestHandler.content(HttpConnection.java:938) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) > at > org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java: > 409) > at org.mortbay.thread.QueuedThreadPool > $PoolThread.run(QueuedThreadPool.java:582) > Caused by: com.google.apphosting.api.ApiProxy$ApplicationException: > ApplicationError: 2: > at > com.google.appengine.api.channel.dev.LocalChannelService.sendChannelMessage(LocalChannelService.java: > 91) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: > 39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: > 25) > at java.lang.reflect.Method.invoke(Method.java:597) > at com.google.appengine.tools.development.ApiProxyLocalImpl > $AsyncApiCall.call(ApiProxyLocalImpl.java:305) > at com.google.appengine.tools.development.ApiProxyLocalImpl > $AsyncApiCall.call(ApiProxyLocalImpl.java:262) > at java.util.concurrent.Executors$PrivilegedCallable > $1.run(Executors.java:463) > at java.security.AccessController.doPrivileged(Native Method) > at java.util.concurrent.Executors > $PrivilegedCallable.call(Executors.java:460) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > at java.util.concurrent.ThreadPoolExecutor > $Worker.runTask(ThreadPoolExecutor.java:886) > at java.util.concurrent.ThreadPoolExecutor > $Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:637) -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. 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