R CMD check --as-cran warning
cran, r
Solution
qpdf is an external program necessary to reduce the size of pdf, it can be downloaded from the sourceforge site. You can install either the 32 bis or 64 bits version, both are working.
To install it, you download the file, and then copy the folder to your program folder.
Next you need to edit you system path to point to the bin folder by adding 'C:\Program Files\qpdf-version_numer\bin'. In a command batch (cmd) type qpdf to see if that has been set correctly, you should get the message
qpdf: an input file name is required
Usage: qpdf [options] infile outfile
For detailed help, run qpdf --help
Once this is done, the warning should be removed from your R CMD check
Problem
I am trying to do R CMD check before uploading my package to CRAN. ``` R CMD check --as-cran "my package folder". ``` However, it spits out this warning: ``` "checking for unstated dependencies in examples ... OK WARNING pdf is needed for checks on size reduction of PDFs" ``` I searched online but found no clue to solve this problem. This warning does not turn up when I run "R CMD check" only. And my package works with no problem. Could someone please tell me what might be wrong with my package?