title: Internal server error when using ejs with expressjs
body: <p>I'm new to nodejs and I'm trying to use ejs to template my website. But when I tried to set the view engine, I keep getting the error code 500 - Internal Server Error. Here is my app.js:</p>
  
  <pre><code>var express = require('express');
  var path = require('path');
  var favicon = require('serve-favicon');
  var logger = require('morgan');
  var cookieParser = require('cookie-parser');
  var bodyParser = require('body-parser');
  var engines = require('consolidate');
  
  var index = require('./routes/index');
  var main = require('./routes/main');
  var suoimo = require('./routes/suoimo');
  var vungtau = require('./routes/vungtau');
  var video = require('./routes/video');
  var dalat = require('./routes/dalat');
  
  var app = express();
  
  app.use(express.static('./'));
  
  app.use(express.static('./public'));
  
  // view engine setup
  // app.set('views', path.join(__dirname, 'views'));
  // app.engine('html', engines.mustache);
  app.set('view engine', 'ejs');
  
  // uncomment after placing your favicon in /public
  //app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
  app.use(logger('dev'));
  app.use(bodyParser.json());
  app.use(bodyParser.urlencoded({
    extended: false
  }));
  app.use(cookieParser());
  app.use(express.static(path.join(__dirname, 'public')));
  
  // app.use('/', index);
  app.use('/video', video);
  app.use('/', index);
  app.use('/suoimo', suoimo);
  app.use('/vungtau', vungtau);
  app.use('/main', main);
  app.use('/dalat', dalat);
  
  // catch 404 and forward to error handler
  app.use(function (req, res, next) {
    var err = new Error('Not Found');
    err.status = 404;
    next(err);
  });
  
  // error handler
  app.use(function (err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get('env') === 'development' ? err : {};
  
    // render the error page
    res.status(err.status || 500);
    res.render('error');
  });
  
  module.exports = app;
  </code></pre>
  
  <p>But if I set the view and view engine like this:</p>
  
  <pre><code>app.set('views', path.join(__dirname, 'views'));
  app.engine('html', engines.mustache);
  app.set('view engine', 'html');
  </code></pre>
  
  <p>Everything work fine, anyone know why? Please help</p>