I have a test folder where I've worked out the changes to individual files that I need to make to change from a distil site to quarto. There are 6 quarto files in the test folder and a couple dozen in the target (was distil) folder. When I knit a file that runs fine in the test folder in the target folder, quarto renders the page but throws this error message:
ERROR: TypeError: Found non-callable @@iterator
Google doesn't turn up anything that I recognize as relevant (example). Can anybody suggest an approach (or a solution)?
The YAML, styles, and theme files are identical on both sides.