opentaps1.4.3安装成功之后，无法打开

opentaps1.4.3安装成功之后，无法打开
输入http://localhost:8080/opentaps/，报错信息如下，如何解决

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet execution threw an exception
org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:260)

root cause

java.lang.NoSuchMethodError: bsh.BshClassManager.createClassManager()Lbsh/BshClassManager;
org.ofbiz.base.util.BshUtil.getMasterInterpreter(BshUtil.java:118)
org.ofbiz.base.util.BshUtil.makeInterpreter(BshUtil.java:93)
org.ofbiz.base.util.BshUtil.runBshAtLocation(BshUtil.java:138)
org.ofbiz.widget.screen.ModelScreenAction$Script.runAction(ModelScreenAction.java:406)
org.ofbiz.widget.screen.ModelScreenAction.runSubActions(ModelScreenAction.java:122)
org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:225)
org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:397)
org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:132)
org.ofbiz.widget.screen.ScreenRenderer.render(ScreenRenderer.java:91)
org.ofbiz.widget.screen.ScreenWidgetViewHandler.render(ScreenWidgetViewHandler.java:100)
org.ofbiz.webapp.control.RequestHandler.renderView(RequestHandler.java:797)
org.ofbiz.webapp.control.RequestHandler.doRequest(RequestHandler.java:538)
org.ofbiz.webapp.control.ControlServlet.doGet(ControlServlet.java:203)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.ofbiz.webapp.control.ContextFilter.doFilter(ContextFilter.java:260)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.16 logs.

这个问题怎么解决