Learn to log on to express online and report the error message is not defined.

  node.js, question

It seems that there is something wrong with ejs. There is one sentence in login.html< percentage-message percentage >Report an error

/users/zhangwen/demo/views/header.html: 64 | < meta charset = "utf-8" > 5 | < title > < percentage = title percentage > </title > > 6 | < linkhref = "/stylesheets/  bootstrap.min.css" rel="stylesheet" media="screen"> 7| </head> 8| <body screen_capture_injected="true"> message is not defined
 
 ReferenceError: /Users/zhangwen/demo/views/header.html:6
 4|     <meta charset="utf-8">
 5| <title > < percentage = title percentage > < /title >
 >> 6|     <link href="/stylesheets/bootstrap.min.css" rel="stylesheet" media="screen">
 7| </head>
 8| <body screen_capture_injected="true">
 
 message is not defined
 at eval (eval at <anonymous> (/Users/zhangwen/demo/node_modules/ejs/lib/ejs.js:485:12), <anonymous>:22:16)
 at returnedFn (/Users/zhangwen/demo/node_modules/ejs/lib/ejs.js:514:17)
 at View.exports.renderFile [as engine] (/Users/zhangwen/demo/node_modules/ejs/lib/ejs.js:358:31)
 at View.render (/Users/zhangwen/demo/node_modules/express/lib/view.js:126:8)
 at tryRender (/Users/zhangwen/demo/node_modules/express/lib/application.js:639:10)
 at EventEmitter.render (/Users/zhangwen/demo/node_modules/express/lib/application.js:591:3)
 at ServerResponse.render (/Users/zhangwen/demo/node_modules/express/lib/response.js:961:7)
 at /Users/zhangwen/demo/routes/index.js:14:9
 at Layer.handle [as handle_request] (/Users/zhangwen/demo/node_modules/express/lib/router/layer.js:95:5)
 at next (/Users/zhangwen/demo/node_modules/express/lib/router/route.js:131:13)

Message needs to be defined when you render