#8293 Video file selection required

This is a validation error: no file was selected before clicking Start.

1. Click Select Video/Audio at the top-left and choose at least one file (mp4/mkv/avi/mov/wav/mp3 etc.).
2. Do not tick Folder unless you intend to batch-process an entire directory — if it is ticked and the chosen folder contains no supported media, the same message appears.
3. Make sure the path contains only simple ASCII characters (e.g. D:/vd/001.mp4). Your current install path C:/Users/hp/Downloads/win-pyvideotrans-v4.16 is fine for the software itself, but video paths with Chinese characters, spaces or special symbols can cause ffmpeg failures later.
4. Verify the file is not still selected from a previous session that was cleared — re-select it, then confirm the file name appears in the field next to the button before clicking Start.
5. If the file is selected and the message still appears, the selected item may be unreadable/locked (still open in an editor or partially downloaded). Copy it to a local drive and retry.

If the error persists with a valid file selected, provide the last ~30 lines of the newest log in C:/Users/hp/Downloads/win-pyvideotrans-v4.16/logs/.