How to create documentation with devtools while building a package?

Question

Well, I want to create a documentation in my package project but I get this error:

library(devtools)
> devtools::document()
Updating varbinq documentation
Loading varbinq
Error: contains a blank line

why when I have no blank line in my function! It looks like this:

#' function which do something
#'
#' @param x a value of something
#' @return a value of something2
#' @examples
#' f(2)
f <- function(x){
  x+2
}

maybe it's because of others functions?

Answer 1

程序包Description文件中有空白行时，可能会发生这种情况。