Hello,
I can't create a slave in Hudson.
I submit on : http://myserver/hudson/computer/createItem#
and i have this trace.
Thanks for your help
Yannick AMEUR

Trace :
javax.servlet.ServletException: This page expects a form submission
org.kohsuke.stapler.Stapler.invoke(Stapler.java:450)
org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:145)
org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:438)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:356)
org.kohsuke.stapler.Stapler.service(Stapler.java:116)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:91)
hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:83)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:75)
hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:67)
hudson.security.HudsonFilter.doFilter(HudsonFilter.java:133)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

root cause

java.lang.Error: This page expects a form submission
org.kohsuke.stapler.RequestImpl.getSubmittedForm(RequestImpl.java:659)
hudson.model.ComputerSet.doDoCreateItem(ComputerSet.java:214)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:156)
org.kohsuke.stapler.Function.bindAndInvoke(Function.java:76)
org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:73)
org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:438)
org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:145)
org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:30)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:438)
org.kohsuke.stapler.Stapler.invoke(Stapler.java:356)
org.kohsuke.stapler.Stapler.service(Stapler.java:116)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:91)
hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:83)
hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:75)
hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:67)
hudson.security.HudsonFilter.doFilter(HudsonFilter.java:133)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)