BIRT百灵报表问题

我下载了birt-report-framework-sdk-2_3_0.zip和birt-runtime-2_3_0.zip，都放到了eclipse3.4下 ，现在将runtime下的包和配置文件拷到web项目下，总是报错There is no report design object available. 请问怎么解决
错误信息如下：是初始化错误org.eclipse.birt.report.exception.ViewerException: There is no report design object available.
at org.eclipse.birt.report.context.ViewerAttributeBean.__init(ViewerAttributeBean.java:229)
at org.eclipse.birt.report.context.BaseAttributeBean.init(BaseAttributeBean.java:243)
at org.eclipse.birt.report.context.ViewerAttributeBean.<init>(ViewerAttributeBean.java:112)
at org.eclipse.birt.report.context.BirtContext.__init(BirtContext.java:44)
at org.eclipse.birt.report.context.BaseContext.<init>(BaseContext.java:69)
at org.eclipse.birt.report.context.BirtContext.<init>(BirtContext.java:30)
at org.eclipse.birt.report.servlet.ViewerServlet.__getContext(ViewerServlet.java:150)
at org.eclipse.birt.report.servlet.BirtSoapMessageDispatcherServlet.doGet(BirtSoapMessageDispatcherServlet.java:137)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.eclipse.birt.report.servlet.BirtSoapMessageDispatcherServlet.service(BirtSoapMessageDispatcherServlet.java:112)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.eclipse.birt.report.filter.ViewerFilter.doFilter(ViewerFilter.java:68)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:595)