Hi, The google group is not normally suited to helping 1 on 1 issues like yours. I would suggest posting this on Stack Overflow, always making sure to remember the "how to ask <http://stackoverflow.com/help/how-to-ask>" guide provided on the website.
With only a stacktrace, it becomes very hard to know exactly what happens or what code needs to be fixed. It is always better to include some logic of your code, a snippet to reproduce, or at the very least what you've tried to fix the error and how it helped. Do remember we have members of the Cloud Platform Support team who do monitor Stack and answer questions on there. Cheers! On Monday, July 20, 2015 at 8:19:07 AM UTC-4, Hemanth Kumar wrote: > > Runnig dataflow program on google app engine is giving following error > > W 12:36:16.124 /demo > java.lang.RuntimeException: Failed to construct instance from factory > method > com.google.cloud.dataflow.sdk.runners.DataflowPipelineRunner#fromOptions > at > com.google.cloud.dataflow.sdk.util.InstanceBuilder.buildFromMethod(InstanceBuilder.java:228) > at > com.google.cloud.dataflow.sdk.util.InstanceBuilder.build(InstanceBuilder.java:161) > at > com.google.cloud.dataflow.sdk.runners.PipelineRunner.fromOptions(PipelineRunner.java:52) > at > com.google.cloud.dataflow.sdk.Pipeline.create(Pipeline.java:117) > at myapp.DemoServlet.doGet(DemoServlet.java:91) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > at > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) > at > com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:125) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) > at > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) > at > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) > at > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) > at > org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) > at > com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:257) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) > at org.mortbay.jetty.Server.handle(Server.java:326) > at > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) > at > org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) > at > com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76) > at > org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) > at > com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:146) > at > com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:482) > at > com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:437) > at > com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:444) > at > com.google.tracing.CurrentContext.runInContext(CurrentContext.java:230) > at > com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:308) > at > com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:300) > at > com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:441) > at > com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:234) > at java.lang.Thread.run(Thread.java:745) > Caused by: java.lang.reflect.InvocationTargetException > at > com.google.appengine.runtime.Request.process-8f9b045d763b7321(Request.java) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:45) > at > com.google.cloud.dataflow.sdk.util.InstanceBuilder.buildFromMethod(InstanceBuilder.java:221) > at > com.google.cloud.dataflow.sdk.util.InstanceBuilder.build(InstanceBuilder.java:161) > at > com.google.cloud.dataflow.sdk.runners.PipelineRunner.fromOptions(PipelineRunner.java:52) > at > com.google.cloud.dataflow.sdk.Pipeline.create(Pipeline.java:117) > at myapp.DemoServlet.doGet(DemoServlet.java:91) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) > at > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) > at > org.mortbay.jetty.servlet.ServletHandler$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 > 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$RequestHandler.headerComplete(HttpConnection.java:923) > at > org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) > at > com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:437) > at > com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:444) > at > com.google.tracing.CurrentContext.runInContext(CurrentContext.java:230) > at > com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:308) > at > com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:300) > at > com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:441) > ... 1 more > Caused by: java.lang.RuntimeException: Unable to get application > default credentials. Please see > https://developers.google.com/accounts/docs/application-default-credentials > for details on how to specify credentials. This version of the SDK is > dependent on the gcloud core component version 2015.02.05 or newer to be able > to get credentials from the currently authorized user via gcloud auth. > at > com.google.cloud.dataflow.sdk.util.Credentials.getCredential(Credentials.java:122) > at > com.google.cloud.dataflow.sdk.util.GcpCredentialFactory.getCredential(GcpCredentialFactory.java:43) > at > com.google.cloud.dataflow.sdk.options.GcpOptions$GcpUserCredentialsFactory.create(GcpOptions.java:185) > at > com.google.cloud.dataflow.sdk.options.GcpOptions$GcpUserCredentialsFactory.create(GcpOptions.java:175) > at > com.google.cloud.dataflow.sdk.options.ProxyInvocationHandler.getDefault(ProxyInvocationHandler.java:288) > at > com.google.cloud.dataflow.sdk.options.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:127) > at com.sun.proxy.$Proxy20.getGcpCredential(Unknown Source) > at > com.google.cloud.dataflow.sdk.util.Transport.newDataflowClient(Transport.java:120) > at > com.google.cloud.dataflow.sdk.options.DataflowPipelineDebugOptions$DataflowClientFactory.create(DataflowPipelineDebugOptions.java:157) > at > com.google.cloud.dataflow.sdk.options.DataflowPipelineDebugOptions$DataflowClientFactory.create(DataflowPipelineDebugOptions.java:154) > at > com.google.cloud.dataflow.sdk.options.ProxyInvocationHandler.getDefault(ProxyInvocationHandler.java:288) > at > com.google.cloud.dataflow.sdk.options.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:127) > at com.sun.proxy.$Proxy20.getDataflowClient(Unknown Source) > at > com.google.cloud.dataflow.sdk.runners.DataflowPipelineRunner.<init>(DataflowPipelineRunner.java:160) > <continued in next message> > W 12:36:16.124 <continued from previous message> > at > com.google.cloud.dataflow.sdk.runners.DataflowPipelineRunner.fromOptions(DataflowPipelineRunner.java:155) > ... 34 more > Caused by: java.io.IOException: Application Default Credentials failed > to create the Google App Engine service account credentials class > com.google.api.client.googleapis.extensions.appengine.auth.oauth2.AppIdentityCredential$AppEngineCredentialWrapper. > Check that the component 'google-api-client-appengine' is deployed. > at > com.google.api.client.googleapis.auth.oauth2.DefaultCredentialProvider.tryGetAppEngineCredential(DefaultCredentialProvider.java:274) > at > com.google.api.client.googleapis.auth.oauth2.DefaultCredentialProvider.getDefaultCredentialUnsynchronized(DefaultCredentialProvider.java:159) > at > com.google.api.client.googleapis.auth.oauth2.DefaultCredentialProvider.getDefaultCredential(DefaultCredentialProvider.java:86) > at > com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:213) > at > com.google.api.client.googleapis.auth.oauth2.GoogleCredential.getApplicationDefault(GoogleCredential.java:191) > at > com.google.cloud.dataflow.sdk.util.Credentials.getCredential(Credentials.java:120) > ... 48 more > Caused by: java.lang.ClassNotFoundException: > com.google.api.client.googleapis.extensions.appengine.auth.oauth2.AppIdentityCredential$AppEngineCredentialWrapper > at > com.google.appengine.runtime.Request.process-8f9b045d763b7321(Request.java) > at java.lang.Class.forName(Class.java:136) > at > com.google.api.client.googleapis.auth.oauth2.DefaultCredentialProvider.forName(DefaultCredentialProvider.java:208) > at > com.google.api.client.googleapis.auth.oauth2.DefaultCredentialProvider.tryGetAppEngineCredential(DefaultCredentialProvider.java:259) > ... 53 more > > > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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