我是 nodejs 的新手，想知道是否有人知道如何调试此错误：
TypeError: Property 'engine' of object #<View> is not a function
在 ubuntu 机器上安装 node/npm 后，我刚刚安装了一个 express 实例。有任何想法吗？这是我的堆栈跟踪：
500 TypeError: Property 'engine' of object #<View> is not a function
at View.render (/var/www/node_modules/express/lib/view.js:75:8)
at Function.app.render (/var/www/node_modules/express/lib/application.js:504:10)
at ServerResponse.res.render (/var/www/node_modules/express/lib/response.js:676:7)
at exports.index (/var/www/routes/index.js:7:7)
at callbacks (/var/www/node_modules/express/lib/router/index.js:165:11)
at param (/var/www/node_modules/express/lib/router/index.js:139:11)
at pass (/var/www/node_modules/express/lib/router/index.js:146:5)
at Router._dispatch (/var/www/node_modules/express/lib/router/index.js:173:5)
at Object.router (/var/www/node_modules/express/lib/router/index.js:33:10)
at next (/var/www/node_modules/express/node_modules/connect/lib/proto.js:190:15)
这是路线/index.js 7:7：
res.render('index', { title: 'Express' });