VelocityViewServlet : Error processing a template for path '/other/sandbox/download/index.html'

org.apache.velocity.exception.ResourceNotFoundException: Unable to find resource '/other/sandbox/download/index.html'
	at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:452)
	at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:335)
	at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1102)
	at org.apache.velocity.app.VelocityEngine.getTemplate(VelocityEngine.java:549)
	at org.apache.velocity.tools.view.servlet.VelocityViewServlet.getTemplate(VelocityViewServlet.java:729)
	at org.apache.velocity.tools.view.servlet.VelocityViewServlet.getTemplate(VelocityViewServlet.java:683)
	at org.apache.velocity.tools.view.servlet.VelocityViewServlet.handleRequest(VelocityViewServlet.java:592)
	at org.apache.velocity.tools.view.servlet.VelocityViewServlet.doRequest(VelocityViewServlet.java:545)
	at org.apache.velocity.tools.view.servlet.VelocityViewServlet.doGet(VelocityViewServlet.java:509)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
	at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:268)
	at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
	at org.t2framework.commons.util.ServletUtil.forward(ServletUtil.java:71)
	at org.t2framework.t2.contexts.impl.RequestImpl.forward(RequestImpl.java:171)
	at org.t2framework.t2.contexts.WebContext.forward(WebContext.java:240)
	at org.t2framework.t2.navigation.Forward.forward(Forward.java:191)
	at org.t2framework.t2.navigation.Forward.execute(Forward.java:169)
	at org.t2framework.t2.filter.T2Filter.executeNavigation(T2Filter.java:276)
	at org.t2framework.t2.filter.T2Filter.handleNavigation(T2Filter.java:266)
	at org.t2framework.t2.filter.T2Filter.doFilter(T2Filter.java:215)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at suz.lab.gae.filter.MultiDeviceFilter.doFilter(MultiDeviceFilter.java:24)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.mobylet.core.http.MobyletFilter.processFilter(MobyletFilter.java:105)
	at org.mobylet.core.http.MobyletFilter.doFilter(MobyletFilter.java:69)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:97)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)
	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
	at com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:238)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
	at org.mortbay.jetty.Server.handle(Server.java:313)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506)
	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:830)
	at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
	at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:135)
	at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:235)
	at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:5485)
	at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:5483)
	at com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java:24)
	at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:363)
	at com.google.net.rpc.impl.Server$2.run(Server.java:837)
	at com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:56)
	at com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java:536)
	at com.google.net.rpc.impl.Server.startRpc(Server.java:792)
	at com.google.net.rpc.impl.Server.processRequest(Server.java:367)
	at com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java:448)
	at com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:319)
	at com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:290)
	at com.google.net.async.Connection.handleReadEvent(Connection.java:474)
	at com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:774)
	at com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:205)
	at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:101)
	at com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java:251)
	at com.google.apphosting.runtime.JavaRuntime$RpcRunnable.run(JavaRuntime.java:394)
	at java.lang.Thread.run(Unknown Source)