编译JSP时遇到的错误。怎办?
[31/Jan/2002:14:48:51] info ( 9637): JSP: JSP1x compiler threw exception
org.apache.jasper.JasperException: Page directive: can't have multiple occurrences of session
at org.apache.jasper.compiler.JspParseEventListener$SessionHandler.handlePageDirectiveAttrib
ute(JspParseEventListener.java:460)
at org.apache.jasper.compiler.JspParseEventListener.handleDirective(JspParseEventListener.ja
va:680)
at org.apache.jasper.compiler.DelegatingListener.handleDirective(DelegatingListener.java:119
)
at org.apache.jasper.compiler.Parser$Directive.accept(Parser.java:190)
at org.apache.jasper.compiler.Parser.parse(Parser.java:1048)
at org.apache.jasper.compiler.Parser.parse(Parser.java:1022)
at org.apache.jasper.compiler.Parser.parse(Parser.java:1018)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:173)
at com.netscape.server.http.servlet.NSServletEntity.load(NSServletEntity.java:230)
at com.netscape.server.http.servlet.NSServletEntity.update(NSServletEntity.java:149)
at com.netscape.server.http.servlet.NSServletRunner.Service(NSServletRunner.java:453)
[31/Jan/2002:14:48:51] warning ( 9637): Internal error: Failed to get GenericServlet. (uri=/pim/PIMW
P020.jsp,SCRIPT_NAME=/pim/PIMWP020.jsp)