Resize upload image using node-imagemagick

I tried to resize image, which was uploaded. I have such script:

var express = require('express');
var app = express();
var multer = require('multer');
var im = require('imagemagick');
var fs = require('fs');

app.use(multer({ 
                    dest: '.',
                    rename: function (fieldname, filename) {
                        return filename;
                    },
                    onFileUploadStart: function(file){
                        im.resize({
                        srcPath: 'like_icon.png',
                        dstPath: 'like_icon-small.png',
                        width:   256
                        }, function(err, stdout, stderr){
                        if (err) throw err;
                        console.log('resized kittens.jpg to fit within 256x256px');
                        });
                    }
                }));

app.get('/user', function(req, res){
    res.set('Access-Control-Allow-Origin','*');
    res.send('Hello, user!');
});

app.post('/', function(req, res){
    console.log('Recieved file!');  
    res.send('Recieved file!');
});

app.listen(3000);

But, the resize method return the error:

"Error: Command failed: Invalid Parameter -set",

I installed Image Magick, and it works from command line.

What wrong? Why I have an error?