Express.js Failed to lookup view “default” in views directory

[Ali Reza]

I am wants using Nginx as reverse proxy for my express.js app.

here is my nginx config :

server {

    listen 80;

    server_name  my server ip address;

    location / {

        proxy_pass http://myip:3000;

        proxy_http_version 1.1;

        proxy_set_header Upgrade $http_upgrade;

        proxy_set_header Connection 'upgrade';

        proxy_set_header Host $host;

        proxy_cache_bypass $http_upgrade;

    }

}

and its my app.js :

var express = require('express');

var mongoose = require('mongoose');

var app = express();

app.set('view engine' , 'ejs');

app.use(express.static('public'));

app.get('/song', function(req, res, next) {

   // my route

}

without nginx my app works very well but when i using nginx as reverse proxy and go to my songroute node give me this error : Failed to lookup view "default" in views directory

i want know where i am wrong. thanks.