| Error in GUI Log | What It Means | Fix | | :--- | :--- | :--- | | Failed to parse playlist | The URL is not a valid M3U8 file. | Ensure you copied the full .m3u8 URL. | | key not found | Decryption missing. | Extract the Key URI from the M3U8 file or use --key-text-file . | | 404 segment not found | The segments are behind a time-expiring token. | Re-copy the M3U8 URL (it may have expired). Add ?token=... params. | | FFmpeg not in PATH | Merger step fails. | Install FFmpeg and add to PATH or place it in the GUI folder. |
The GUI automatically saves your preferred settings between sessions, such as thread counts or proxy configurations. N-m3u8dl-re Gui