gistfile1.txt

easyimg.resize({src:'./upload/work/abcd.png', dst:'./upload/work/abcd-small.png', width:50, height:50}, function(err, stdout, stderr) {
    if (err) throw err;
    console.log('Resized to 50x50');
});




shows error me like 


Error: Command failed: /bin/sh: 1: convert: not found

    at ChildProcess.exithandler (child_process.js:540:15)
    at ChildProcess.EventEmitter.emit (events.js:99:17)
    at maybeClose (child_process.js:638:16)
    at Socket.ChildProcess.spawn.stdin (child_process.js:815:11)
    at Socket.EventEmitter.emit (events.js:96:17)
    at Socket._destroy.destroyed (net.js:358:10)
    at process.startup.processNextTick.process._tickCallback (node.js:244:9)
22 Feb 17:41:24 - [nodemon] app crashed - waiting for file changes before starting...