>What does your code look like ? 

My jsp pages are running but I'm having this problem any jsp page I load.
> The error came just after the output of the jsp.
> like my helloJsp page output is :
> 
> 
> Hello jsp
> Error: 500
> Location: /examples/jsp/num/numguess.jsp
> Internal Servlet Error:
> 
> javax.servlet.ServletException
> 	at org.apache.jasper.servlet.JspServlet.service
> (JspServlet.java:508)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
> 	at org.apache.tomcat.core.ServletWrapper.doService
> (ServletWrapper.java:405)
> 	at org.apache.tomcat.core.Handler.service(Handler.java:287)
> 	at org.apache.tomcat.core.ServletWrapper.service
> (ServletWrapper.java:372)
> 	at org.apache.tomcat.core.ContextManager.internalService
> (ContextManager.java:797)
> 	at org.apache.tomcat.core.ContextManager.service
> (ContextManager.java:743)
> 	at 
> org.apache.tomcat.service.http.HttpConnectionHandler.processConnection
> (HttpConnectionHandler.java:213)
> 	at org.apache.tomcat.service.TcpWorkerThread.runIt
> (PoolTcpEndpoint.java:416)
> 	at org.apache.tomcat.util.ThreadPool$ControlRunnable.run
> (ThreadPool.java:501)
> 	at java.lang.Thread.run(Thread.java:484)
> 
> Root cause: 
> java.lang.NoSuchMethodError
> 	at org.apache.jasper.runtime.JspWriterImpl.flush
> (JspWriterImpl.java:209)
> 	at 
> 
jsp.num._0002fjsp_0002fnum_0002fnumguess_0002ejspnumguess_jsp_0._jspService
> (_0002fjsp_0002fnum_0002fnumguess_0002ejspnumguess_jsp_0.java:150)
> 	at org.apache.jasper.runtime.HttpJspBase.service
> (HttpJspBase.java:119)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
> 	at org.apache.jasper.servlet.JspServlet$JspCountedServlet.service
> (JspServlet.java:130)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
> 	at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service
> (JspServlet.java:282)
> 	at org.apache.jasper.servlet.JspServlet.serviceJspFile
> (JspServlet.java:429)
> 	at org.apache.jasper.servlet.JspServlet.service
> (JspServlet.java:500)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:840)
> 	at org.apache.tomcat.core.ServletWrapper.doService
> (ServletWrapper.java:405)
> 	at org.apache.tomcat.core.Handler.service(Handler.java:287)
> 	at org.apache.tomcat.core.ServletWrapper.service
> (ServletWrapper.java:372)
> 	at org.apache.tomcat.core.ContextManager.internalService
> (ContextManager.java:797)
> 	at org.apache.tomcat.core.ContextManager.service
> (ContextManager.java:743)
> 	at 
> org.apache.tomcat.service.http.HttpConnectionHandler.processConnection
> (HttpConnectionHandler.java:213)
> 	at org.apache.tomcat.service.TcpWorkerThread.runIt
> (PoolTcpEndpoint.java:416)
> 	at org.apache.tomcat.util.ThreadPool$ControlRunnable.run
> (ThreadPool.java:501)
> 	at java.lang.Thread.run(Thread.java:484)
> 
> 
> 
> Why I'm getting this problem?Please help about it.Thank you in advance.
> Parv