大虾们，小弟出现了这样的错误～不知怎么解决～

org.apache.jasper.JasperException: Unable to compile class for JSPAn error occurred at line: 52 in the jsp file: /list.jspGenerated servlet error:
    [javac] Compiling 1 source fileF:\我的软件\tomcat\tomcat\Tomcat 4.1\work\Standalone\localhost\3.6\list_jsp.java:7: package com.accp does not exist
import com.accp.*;
^
F:\我的软件\tomcat\tomcat\Tomcat 4.1\work\Standalone\localhost\3.6\list_jsp.java:69: cannot resolve symbol
symbol  : class UserBean 
location: class org.apache.jsp.list_jsp
UserBean bean = new UserBean();
        ^An error occurred at line: 52 in the jsp file: /list.jspGenerated servlet error:
F:\我的软件\tomcat\tomcat\Tomcat 4.1\work\Standalone\localhost\3.6\list_jsp.java:69: cannot resolve symbol
symbol  : class UserBean 
location: class org.apache.jsp.list_jsp
UserBean bean = new UserBean();
                            ^An error occurred at line: 52 in the jsp file: /list.jspGenerated servlet error:
F:\我的软件\tomcat\tomcat\Tomcat 4.1\work\Standalone\localhost\3.6\list_jsp.java:73: cannot resolve symbol
symbol  : class UserForm 
location: class org.apache.jsp.list_jsp
UserForm form = (UserForm)v.elementAt(i);
                ^An error occurred at line: 52 in the jsp file: /list.jspGenerated servlet error:
F:\我的软件\tomcat\tomcat\Tomcat 4.1\work\Standalone\localhost\3.6\list_jsp.java:73: cannot resolve symbol
symbol  : class UserForm 
location: class org.apache.jsp.list_jsp
UserForm form = (UserForm)v.elementAt(i);
                                 ^
5 errors
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:85)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:248)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:315)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:328)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:427)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:142)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:809)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:200)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:146)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:209)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:144)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2358)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:118)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:116)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:948)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:152)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)