title: NODE.JS Error: Cannot find ffmpeg while using module Audioconcat
body: <p><strong>Want to concatenate two audio files. i used an npm known as audioconcate but when i installed and configured the below code i am confronted with the following error</strong></p>
  
  <pre><code>Error: Error: Cannot find ffmpeg
      at E:\VoiceMan\registercheck\node_modules\fluent-ffmpeg\lib\processor.js:136:22
      at E:\VoiceMan\registercheck\node_modules\fluent-ffmpeg\lib\capabilities.js:123:9
      at E:\VoiceMan\registercheck\node_modules\async\dist\async.js:356:16
      at nextTask (E:\VoiceMan\registercheck\node_modules\async\dist\async.js:5057:29)
      at E:\VoiceMan\registercheck\node_modules\async\dist\async.js:5064:13
      at apply (E:\VoiceMan\registercheck\node_modules\async\dist\async.js:21:25)
      at E:\VoiceMan\registercheck\node_modules\async\dist\async.js:56:12
      at E:\VoiceMan\registercheck\node_modules\async\dist\async.js:840:16
      at E:\VoiceMan\registercheck\node_modules\fluent-ffmpeg\lib\capabilities.js:116:11
      at E:\VoiceMan\registercheck\node_modules\fluent-ffmpeg\lib\utils.js:223:16
  ffmpeg stderr: undefined
  </code></pre>
  
  <p>here is the code i am using: (all audio files are in the same folder also)</p>
  
  <p>var audioconcat = require('audioconcat')</p>
  
  <pre><code>var songs = [
    'a(1).mp3',
    'a(2).mp3',
    'a(3).mp3'
  ]
  
  audioconcat(songs)
  
    .concat('all.mp3') 
    .on('start', function (command) {
      console.log('ffmpeg process started:', command)
    })
    .on('error', function (err, stdout, stderr) {
      console.error('Error:', err)
      console.error('ffmpeg stderr:', stderr)
    })
    .on('end', function (output) {
      console.error('Audio created in:', output)
    })
  </code></pre>