I am encountering difficulties when running the executable programs (ffmpeg and yt-dlp portable). The error log is as follows:
Error opening input: Invalid data found when processing input Error opening input file -. Error opening input files: Invalid data found when processing input
Try printing ( with log) the command you are trying to execute, run it in a seperate command line to see if it's working properly.
since it's related to input I am suspecting the problem is with the youtube url you are providing