Documentation

Cause and Solution

This error occurs when the template used in this lesson has been deleted, so the lesson can no longer find its styling and layout information.

To fix this, you need to re-link the lesson to an existing template by following these steps:

1. In the editor's top menu, click "Presentation".
2. From the dropdown menu, choose the "Select Template..." option.
3. A new window will open, showing you a list of all available templates.
4. Select a new template to apply to your lesson and confirm your choice.

This will resolve the error.