STRUTS 的问题，No action instance for path

[hhohho]

TOMCAT5.0.25+MYSQL4.1
web.xml已配置了

struts-config.xml的配置如下：
<struts-config>

<form-beans>
<form-bean name="userinfoForm"
type="com.my.entity.Userinfo"/>
</form-beans>

<action-mappings>
<action path="/reguser"
type="com.my.actions.RegUserAction"
input="/registeuser.jsp"
name="userinfoForm"
scope="request">
<forward name="success" path="/regcom.jsp"/>
</action>

</action-mappings>

</struts-config>
---------------------------------------------------------------------

<html:form action="/reguser.do" focus="username" method="POST">
..............
</html:form>
运行时报错：
type Status report

message No action instance for path /reguser could be created

description The server encountered an internal error (No action instance for path /reguser could be created) that prevented it from fulfilling this request.

我看了半天也没看出来，急。。。

[pbnow]

1，config配置了吗？
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>


<!-- Action Servlet Mapping -->
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

2，再检查一下你的action所在的package些错没
这样的错误多半是type中指定的class找不到

[hhohho]

配置和你所写的一样，PACKAGE没错。
另一个ACTION却可以运行，找了半天也没查出来什么问题。

[hhohho]

出错的原因如下：
Error creating Action instance for path '/reguser', class name 'com.my.actions.RegUserAction'
java.lang.NoClassDefFoundError: org/apache/struts/config/ActionConfig
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at org.apache.struts.action.ActionServlet.processActionCreate(ActionServlet.java:1630)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1576)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:509)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802
.................

[hhohho]

自己顶，急死我了，找来找去都找不到。