Uncaught TypeError: SassWatch.watchers[this.watcher.inPath].stop is not a function

[ghost]

[Enter steps to reproduce below:]

1. ...
2. ...

Atom Version: 1.5.3 System: Ubuntu 15.10 Thrown From: sass-watch package, v0.3.1

Stack Trace

Uncaught TypeError: SassWatch.watchers[this.watcher.inPath].stop is not a function

At /home/malak/.atom/packages/sass-watch/lib/watcher-view.coffee:37

TypeError: SassWatch.watchers[this.watcher.inPath].stop is not a function
    at WatcherView.module.exports.WatcherView.stopWatcher (/home/malak/.atom/packages/sass-watch/lib/watcher-view.coffee:37:43)
    at HTMLButtonElement.<anonymous> (/home/malak/.atom/packages/sass-watch/node_modules/space-pen/lib/space-pen.js:214:36)
    at HTMLButtonElement.jQuery.event.dispatch (/home/malak/.atom/packages/sass-watch/node_modules/space-pen/vendor/jquery.js:4676:9)
    at HTMLButtonElement.elemData.handle (/home/malak/.atom/packages/sass-watch/node_modules/space-pen/vendor/jquery.js:4360:28)

Commands

     -3:54.1.0 dev-live-reload:reload-all (atom-text-editor.editor.is-focused)
     -3:24.9.0 open-on-github:branch-compare (atom-text-editor.editor.is-focused)
     -2:59.8.0 sass-watch:watch (atom-text-editor.editor.is-focused)
     -2:42.1.0 core:confirm (atom-text-editor.editor.mini.is-focused)
     -2:28.9.0 sass-watch:list (atom-text-editor.editor.is-focused)
  4x -2:20.1.0 core:backspace (atom-text-editor.editor.mini.is-focused)
     -1:35.8.0 sass-watch:watch (atom-text-editor.editor.is-focused)
     -1:33.1.0 editor:consolidate-selections (atom-text-editor.editor.mini.is-focused)
     -1:33.1.0 core:cancel (atom-text-editor.editor.mini.is-focused)
  4x -1:25.4.0 core:save (atom-text-editor.editor.is-focused)
     -0:08.7.0 sass-watch:list (atom-text-editor.editor.is-focused)

Config

{
  "core": {}
}

Installed Packages

# User
atom-beautify, v0.28.24
sass-watch, v0.3.1

# Dev
No dev packages