登录saml-federation.apspot.com时出错

当我尝试访问此页面时 . saml-federation.appspot.com，然后我收到以下错误：

消息：未配置IDP，请使用至少一个IDP更新包含的元数据

StackTrace：org.opensaml.saml2.metadata.provider.MetadataProviderException：未配置IDP，请在org.springframework.security.saml.metadata.MetadataManager.getDefaultIDP（MetadataManager.java:781）更新包含至少一个IDP的包含元数据org.springframework.security.saml.context.SAMLContextProviderImpl.populatePeerEntityId（SAMLContextProviderImpl.java:157）位于org.springframework.security.saml的org.springframework.security.saml.context.SAMLContextProviderImpl.getLocalAndPeerEntity（SAMLContextProviderImpl.java:127） . SAMLEntryPoint.commence（SAMLEntryPoint.java:146）在org.springframework.security.saml.SAMLEntryPoint.doFilter（SAMLEntryPoint.java:107）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）在org.springframework.securit.securit的org.springframework.security.web.FilterChainProxy.doFilterInternal（FilterChainProxy.java:192）org.springframework.security.web.FilterChainProxy.doFilter（FilterChainProxy.java:166） y.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter（SecurityContextPersistenceFilter.java:87）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain . 的doFilter（FilterChainProxy.java:342）在org.springframework.security.web.FilterChainProxy.doFilterInternal（FilterChainProxy.java:192）在org.springframework.security.web.FilterChainProxy.doFilter（FilterChainProxy.java:160）在org.springframework在org.mortbay.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler）的org.springframework.web.filter.DelegatingFilterProxy.doFilter（DelegatingFilterProxy.java:259）上的.web.filter.DelegatingFilterProxy.invokeDelegate（DelegatingFilterProxy.java:346）的.java：1157）在com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter（ParseBlobUploadFilter.java:125）在org.mortbay.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1157）在COM . google.ap phosting.runtime.jetty.SaveSessionFilter.doFilter（SaveSessionFilter.java:35）在org.mortbay.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1157）在com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter . doFilter（JdbcMySqlConnectionCleanupFilter.java:60）位于com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter（TransactionCleanupFilter.java:43）的org.mortbay.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1157）在Org.mortbay.jet.SecurityHandler的org.mortbay.jetty.servlet.ServletHandler $ CachedChain.doFilter（ServletHandler.java:1157）org.mortbay.jetty.servlet.ServletHandler.handle（ServletHandler.java:388）org.mortbay.jetty.security.SecurityHandler .handle（SecurityHandler.java:216）org.mortbay.jetty.servlet.SessionHandler.handle（SessionHandler.java:182）org.mortbay.jetty.handler.ContextHandler.handle（ContextHandler.java:765）org . 在com.google.apphosting.runtime.jetty.A上的mortbay.jetty.webapp.WebAppContext.handle（WebAppContext.java:418）在org.mortbay的org.mortbay.jetty.Server.handle（Server.java:326）的org.mortbay.jetty.handler.HandlerWrapper.handle（HandlerWrapper.java:152）中的ppVersionHandlerMap.handle（AppVersionHandlerMap.java:254） .jetty.HttpConnection.handleRequest（HttpConnection.java:542）在org.mortbay.jetty.HttpConnection $ RequestHandler.headerComplete（HttpConnection.java:923）在com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable（RpcRequestParser.java ：76）位于com.google.apphosting.runtime的com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest（JettyServletEngineAdapter.java:146）上的org.mortbay.jetty.HttpConnection.handle（HttpConnection.java:404） . Java.Runnable.run（JavaRuntime.java:480）位于com.google.tracing.TraceContext $ TraceContextRunnable.runInContext（TraceContext.java:438）com.google.tracing.TraceContext $ TraceContextRunnable $ 1.run（TraceContext.java:445） ）com.google.tracing.TraceC上的com.google.tracing.CurrentContext.runInContext（CurrentContext.java:220） ontext $ AbstractTraceContextCallback.runInInheritedContextNoUnref（TraceContext.java:309）at com.google.tracing.TraceContext $ AbstractTraceContextCallback.runInInheritedContext（TraceContext.java:301）at atcom.google.tracing.TraceContext $ TraceContextRunnable.run（TraceContext.java:442）at com.google.apphosting.runtime.ThreadGroupPool $ PoolEntry.run（ThreadGroupPool.java:251）at java.lang.Thread.run（Thread . Java的：724）