Cannot find ActionMappings or ActionFormBeans collection

[red phoenix]

I use Struts struts-1.2.8,when I execute my JSP file,it raise following
error:

javax.servlet.ServletException: Cannot find ActionMappings or
ActionFormBeans collection
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(
PageContextImpl.java:858)
org.apache.jasper.runtime.PageContextImpl.handlePageException(
PageContextImpl.java:791)
org.apache.jsp.index_jsp._jspService(org.apache.jsp.index_jsp:97)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java
:332)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

My index.jsp file is:

<%@ taglib uri="http://struts.apache.org/tags-html"; prefix="html" %>
<html:form method="post" action="log.do">
 <table>
 ...
</table>
</html:form>

struts.config file is:
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 1.0//EN"
          "http://jakarta.apache.org/struts/dtds/struts-config_1_0.dtd";>
<struts-config>
  <form-beans>
    <form-bean name="logmanageForm" type="com.LogmanageForm"/>
  </form-beans>
  <action-mappings>
    <action    path="/log"
               type="com.LogmanageAction"
               name="logmanageForm"
               validate="true"
               input="/index.jsp">
      <forward name="show" path="/show.jsp"/>
    </action>
  </action-mappings>
</struts-config>

web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
  PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
  "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd";>
<web-app>
  <!-- Action Servlet Configuration -->
  <servlet>
   <servlet-name>action</servlet-name>
    <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
  <init-param>
      <param-name>application</param-name>
      <param-value>resources.application</param-value>
    </init-param>
    <init-param>
      <param-name>config</param-name>
      <param-value>/WEB-INF/struts-config.xml</param-value>
    </init-param>
    <init-param>
      <param-name>debug</param-name>
      <param-value>2</param-value>
    </init-param>
    <init-param>
      <param-name>detail</param-name>
      <param-value>2</param-value>
    </init-param>
    <init-param>
      <param-name>validate</param-name>
      <param-value>true</param-value>
    </init-param>
    <load-on-startup>2</load-on-startup>
  </servlet>

  <!-- Action Servlet Mapping -->
 <servlet-mapping>
    <servlet-name>action</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <!-- Struts Tag Library Descriptors -->
  <taglib>
    <taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-html.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
  </taglib>
</web-app>

My directory is:
C:\tomcat5\webapps\Log\index.jsp
C:\tomcat5\webapps\Log\show.jsp
C:\tomcat5\webapps\Log\WEB-INF\validation.xml
......
C:\tomcat5\webapps\Log\WEB-INF\classes\com\LogmanageAction
C:\tomcat5\webapps\Log\WEB-INF\classes\com\LogmanageForm

Where raise error?

Thanks in advance!