Erro Struts Missing configuration resource

Front-end
#1

pessoal,
ta ocorrendo um erro quando iniciou o projeto struts:
to usuando o struts 1.2.7

javax.servlet.UnavailableException: Missing configuration resource for path /WEB-INF/struts-config.xml
	at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:732)
	at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:687)
	at org.apache.struts.action.ActionServlet.init(ActionServlet.java:333)
	at javax.servlet.GenericServlet.init(GenericServlet.java:212)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:993)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4149)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4458)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:516)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)

aqui está as configurações do struts-config.xml

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">

<struts-config>
	<form-beans>
		<form-bean name="usuarioForm"
			type="dev.UsuarioForm" />
	</form-beans>
	
	<global-exceptions>
		<exception key="" type="javax.servlet.ServletException"
			path="/erro/erro.jsp">
		</exception>
	</global-exceptions>

	<global-forwards>

	</global-forwards>	

	<action-mappings>
		<action path="/usuario"
			type="dev.action.UsuarioAction"
			name="usuarioForm" scope="request" validate="false"
			input="/index.jsp">
			<forward name="success" path="/sucesso.jsp" />
		</action>
	</action-mappings>

	<!-- -->
	<message-resources parameter="resources.application" />

	<!--
		<message-resources parameter="MessageResources" />
	-->

</struts-config>

o que pode ser???
vlw

#2