How do I 'prebuild' a vignette index for an R package?

Question

I\'m preparing a package for submission to CRAN. I use R CMD build myPackage then R CMD check myPackage --as-cran and it passes all checks with no

Answer 1

I gather the Vignette commands need to be in the preamble, i.e. below documentclass, so that the file myVignette.Rnw should read:

\documentclass{article}

% \VignetteIndexEntry{myVignette}
% \VignetteEngine{knitr::knitr}

\usepackage[]{graphicx}
...

This seems to work fine.

The error message is from the development version of R CMD check which is currently 3.3.0. I have been using the older 'stable' version which is not the recommended way to check packages when considering submission to CRAN.

I'm still not sure of the merits of using a manual index.html file - it appears unnecessary but I will gladly change the accepted answer if anyone can throw some light on this.