This error indicates that no TTS (Text-to-Speech) voice role has been selected for the dubbing process. To resolve this, please follow these steps:
- In the main interface, locate the "Dubbing (TTS)" section (row 4).
- Click on the dropdown menu next to "Role".
- Select a voice role from the list. For a quick start, you can choose a free option like "Edge-TTS" or "VITS-cnen".
- After selecting a role, you can click the "Test" button to preview the voice.
Once a role is selected, you can proceed with the translation and dubbing process.