Unhandled Exception: ProcessException: The specified file could not be found.

[poka-IT]

On windows, I just want to convert webm audio file to mp3.
But ffmpeg never find the input file, even the file exist:

[ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: ProcessException: The specified file could not be found.
  Command: ffmpeg -i E:\Download/test.webm -ab 320 -ar 44100 -filter_complex "  " E:\Download/test.mp3

Same with files in assets folder.

[abhay-s-rawat]

Bro use paths like below, So that pathing is clear to OS. It automatically uses backslash for windows.

That error was due to that empty filter complex, worry not I made it optional to have it. Soon will submit pull request.

import 'package:path/path.dart' as path;

String inputfile = path.join("E:", "Download","test.webm");

[matthew-carroll]

It looks like the issue here is that either the user is using the wrong path separator, or the package is internally using the wrong path separator. For this ticket, audit the package and ensure that all path separators are platform agnostic.