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Editorial Team
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Asked: 2026-05-28T15:41:44+00:00

I try to bring this sample to run http://wiki.restlet.org/docs_2.0/13-restlet/275-restlet/252-restlet.html but once I start it

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I try to bring this sample to run http://wiki.restlet.org/docs_2.0/13-restlet/275-restlet/252-restlet.html but once I start it I get this message which I unfortunately do not know anything.

Missing required argument 'module[s]'
Google Web Toolkit 2.4.0
DevMode [-noserver] [-port port-number | "auto"] [-whitelist whitelist-string] [-blacklist blacklist-string] [-logdir directory] [-logLevel level] [-gen dir] [-bindAddress host-name-or-address] [-codeServerPort port-number | "auto"] [-server servletContainerLauncher[:args]] [-startupUrl url] [-war dir] [-deploy dir] [-extra dir] [-workDir dir] module[s] 

where 
  -noserver        Prevents the embedded web server from running
  -port            Specifies the TCP port for the embedded web server (defaults to 8888)
  -whitelist       Allows the user to browse URLs that match the specified regexes (comma or space separated)
  -blacklist       Prevents the user browsing URLs that match the specified regexes (comma or space separated)
  -logdir          Logs to a file in the given directory, as well as graphically
  -logLevel        The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM, or ALL
  -gen             Debugging: causes normally-transient generated types to be saved in the specified directory
  -bindAddress     Specifies the bind address for the code server and web server (defaults to 127.0.0.1)
  -codeServerPort  Specifies the TCP port for the code server (defaults to 9997)
  -server          Specify a different embedded web server to run (must implement ServletContainerLauncher)
  -startupUrl      Automatically launches the specified URL
  -war             The directory into which deployable output files will be written (defaults to 'war')
  -deploy          The directory into which deployable but not servable output files will be written (defaults to 'WEB-INF/deploy' under the -war directory/jar, and may be the same as the -extra directory/jar)
  -extra           The directory into which extra files, not intended for deployment, will be written
  -workDir         The compiler's working directory for internal use (must be writeable; defaults to a system temp dir)
and 
  module[s]        Specifies the name(s) of the module(s) to host

I use Eclipse 3.7, “Create a Web Application Projekt” with “GWT (3) 2.4” and “App Engine(4) 1.6.0”

What do I have to enter where, can someone help me?

Thanx Bobert

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1 Answer

  1. Editorial Team

    You try to start your GWT application in DevMode but the “Run configuration” in Eclipse is not correct. This is a an example of what the arguments in your “Run configuration” should look like :

    -server com.google.appengine.tools.development.gwt.AppEngineLauncher -remoteUI “${gwt_remote_ui_server_port}:${unique_id}” -startupUrl index.html -logLevel INFO -war /home/koen/workspace/klawt/war -codeServerPort 9997 -port 8888 com.example.MyModuleEntryPoint

    It is this last argument that is missing for you : com.example.MyModule. You must have a corresponding MyModule.gwt.xml in package com.example.

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