Q:

R CMD Check, '--no-manual': How to change this option?

There are similar questions R create reference manual with R CMD check. However, I still can fix my problem with R CMD Check. 
When R CMD Check, it indicates: 
-- R CMD check results ----------------------------------- chest 0.0.1.0000 ----
Duration: 1m 32.1s

0 errors v | 0 warnings v | 0 notes v

R CMD check succeeded

But without producing the Reference Manual. When I check the log file, it says * using options '--no-manual --as-cran'. I have tried to change the Project option, then Build tools, then Check package R CMD check additional options without any success. What should I do to turn off --no-manual option? Thanks.  

A:

You appear to be running devtools::check() from the RStudio menus.  I don't know if there's a way to set these options from the menus, but you can set them from the command line by running
devtools::check(manual = TRUE)

