TypeError: Cannot read property 'img' of undefined

Hello, I try to upload a simple file but i got an erreor TypeError: Cannot read property ‘img’ of undefined.

here is my route.js :

var express = require('express'),
router = express.Router(),
home = require('../controllers/home'),
image = require('../controllers/image'),
multer = require('multer'),
path = require('path'),
upload=multer({ dest: path.join(__dirname,'../public/upload/temp')});


module.exports = function(app) {
router.get('/', home.index);
router.get('/images/:image_id', image.index);
router.post('/images',upload.single('img'),  image.create);
router.post('/images/:image_id/like', image.like);
router.post('/images/:image_id/comment', image.comment);
app.use(router);
};

and my form :

<form method="post" action="/images" enctype="multipart/formdata">
<div class="panel-body form-horizontal">
<div class="form-group col-md-12">
<label class="col-sm-2 control-label" for="file">Parcourir:</label>
<div class="col-md-10">
<input class="form-control" type="file" name="img" id="file">
</div>
</div>

…

my image controller :

create: function(req, res) {
var saveImage = function() {
    var possible = 'abcdefghijklmnopqrstuvwxyz0123456789',
imgUrl = '';
for(var i=0; i < 6; i+=1) {
imgUrl += possible.charAt(Math.floor(Math.random() *
possible.length));
}

console.log(req.body);
var tempPath = req.file.img.path,
ext = path.extname(req.file.img.name).toLowerCase(),
targetPath = path.resolve('./public/upload/' + imgUrl + ext);
.... 

please if someone can help me

[LinusU]

Since you are using .single() the file will be available at simply req.file, not req.file.img, could you try and change to that?

[tinarooot]

解决了吗