no path error

[caomulaodao]

run example

`/Users/laodao/www/dao-kuaikan-video/app/script/a.mp4
null
/Users/laodao/www/dao-kuaikan-video/node_modules/ffmpeg-remix/dist/index.js:109
throw _iteratorError;
^

TypeError: Cannot read property 'path' of null
at /Users/laodao/www/dao-kuaikan-video/node_modules/ffmpeg-remix/dist/index.js:97:27
at /Users/laodao/www/dao-kuaikan-video/node_modules/ffmpeg-remix/node_modules/async/dist/async.js:486:20
at /Users/laodao/www/dao-kuaikan-video/node_modules/ffmpeg-remix/node_modules/async/dist/async.js:1074:13
at /Users/laodao/www/dao-kuaikan-video/node_modules/ffmpeg-remix/node_modules/async/dist/async.js:486:20
at iterateeCallback (/Users/laodao/www/dao-kuaikan-video/node_modules/ffmpeg-remix/node_modules/async/dist/async.js:865:21)
at /Users/laodao/www/dao-kuaikan-video/node_modules/ffmpeg-remix/node_modules/async/dist/async.js:847:20
at /Users/laodao/www/dao-kuaikan-video/node_modules/ffmpeg-remix/node_modules/async/dist/async.js:1071:17
at FfmpegCommand. (/Users/laodao/www/dao-kuaikan-video/node_modules/ffmpeg-remix/dist/index.js:72:7)
at emitThree (events.js:97:13)
at FfmpegCommand.emit (events.js:175:7)`

[Laurian]

weird, I will try to reproduce