I've been writing a book with bookdown for 9 months (to be published by CRC Press).
Everything was doing just fine until yesterday, when I got the error message:
output file: ML_factor.knit.md
Error in enc2utf8(text) : argument is not a character vector
I updated all versions (RStudio, packages (rmarkdown, knitr, bookdown, htmltools)) but I'm blocked.
I've tried coming back to previous versions of the book: that does not help.
I've seen issues with this error message on the web, but no solution has worked (to date).
Thank you!