After referencing connect in node, using its own middleware will always report an error.

<code>    var connect = require('connect');
    var app = connect()
        .use(connect.cookieParser())
        .use(function(req,res){
        console.log(req.cookie);
        console.log(req.signedCookies);
    }).listen(3000);</code>

Tips: connect.cookieParser is not a function;
It will also prompt when using bodyParser.
It is said online that it is separated from connect. You need to npm install cookieParser again.
Is bodyParser also needed? All the intermediate Do you need all the pieces?