pkgdown error: Undefined tag in usage tag_code

Question

I'm running into an error message that I do not understand when trying to build a website for my package with pkgdown.

As the instruction (https://pkgdown.r-lib.org/) says:

I've run usethis::use_pkgdown() one time.

When I run pkgdown::build_site() nothing happens and then I get the error message Undefined tag in usage tag_code .

Googling the error message did not help and I have no idea where to start looking for errors in my package. Does anybody know what to do in that case? Documenting with devtools::document() works fine and so does devtools::load_all().

I don't really know how to make a reprex out of that so if you need any more information I'm happy to provide it.

Thanks in advance!

Answer 1

Found the problem:

I mistakenly used the tag @usage in the description of a function. This did not lead to an error in devtools::document() but apparently pkgdown::build_site() could not handle it.