在Eclipse中为什么会报错？

用户名:
密  码:

<%
    request.setCharacterEncoding("utf-8");
    response.setCharacterEncoding("utf-8");

    String name=request.getParameter("name");
    String pwd=request.getParameter("pwd");

    List<Student> list=StudentDao.getListAll();

    if(StudentDao.login(name, pwd)){
        request.setAttribute("login", "长度为");
        request.getRequestDispatcher("/ServletStudent022/StudentLogin").forward(request, response);
    }
    else{
        request.setAttribute("error", "用户名或密码错误");
        request.getRequestDispatcher("manager.jsp").forward(request, response);
    }

%>






type Exception report  message An exception occurred processing JSP page /jsp/login.jsp at line 36  description The server encountered an internal error that prevented it from fulfilling this request.  exception  org.apache.jasper.JasperException: An exception occurred processing JSP page /jsp/login.jsp at line 36  33:        } 34:       else{ 35:           request.setAttribute("error", "鐢ㄦ埛鍚嶆垨瀵嗙爜閿欒"); 36:          request.getRequestDispatcher("manager.jsp").forward(request, response); 37:         } 38:        39:    %>

request.getRequestDispatcher("manager.jsp").forward(request, response);这句错了