discord ffprobe / avprobe and ffmpeg / avconv not found error
so what you need to do is that you need to go to https://dashboard.heroku.com/apps//settings or go to settings in the heroku and scroll down to buildpack. Then you need to copy the link given below and paste it in that section
Link:https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest.git