install_github does not install Depends of Depends? #1265
Description
Hi. After updating to the most recent version of R 3.3.1, using CRAN devtools 1.12.0 and Rtools34 (Windows XP or 10, x64) I encounter an issue with the install_github(...) command. Namely, after running install.packages("devtools") and library(devtools) without any problems, I run - for example - install_github("rstudio/DT"). This installs the Imports of the DT package (e.g. htmltools), but not in turn the Imports of these Imports (e.g. Rcpp for htmltools). Thus, install_github aborts with
* installing *source* package 'DT' ...
** R
** inst
** preparing package for lazy loading
Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) : there is no package called 'Rcpp'
ERROR: lazy loading failed for package 'DT'
* removing 'C:/Program Files/R/R-3.3.1/library/DT'
Fehler: Command failed (1)
DT is just an example; am having the same issue with other github R packages. What am I missing? Thank you!