Building a package with Rstudio fails to load the package while using packrat

After initializing packrat, when I try to build the R package that I'm developing, Rstudio fails to load the package. This has a clear explanation, while the package is installed in the packrat directory, the packrat directory is not among the locations where library looks at.

In other words, after pressing Ctrl + Alt + b, I see the following messages

Build window:

==> roxygen2::roxygenize('.', roclets=c('rd', 'collate', 'namespace', 'vignette'))

Updating vignettes
Documentation completed

==> R CMD INSTALL --no-multiarch --with-keep.source autoreport

* installing to library ‘/home/george/Documents/scj/productos/autoreport/packrat/lib/x86_64-pc-linux-gnu/3.2.2’
* installing *source* package ‘autoreport’ ...
** R
** data
** inst
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded
* DONE (autoreport)

Console:

Restarting R session...

> library(autoreport)
Error in library(autoreport) : there is no package called ‘autoreport’
```r

Session info

```r
R version 3.2.2 (2015-08-14)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 14.04.3 LTS

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C               LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8    LC_PAPER=en_US.UTF-8       LC_NAME=C                 
 [9] LC_ADDRESS=C               LC_TELEPHONE=C             LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
[1] tools_3.2.2   packrat_0.4.4

> .libPaths()
[1] "/home/george/Documents/scj/productos/autoreport/packrat/lib/x86_64-pc-linux-gnu/3.2.2"
[2] "/home/george/Documents/scj/productos/autoreport/packrat/lib-ext"                      
[3] "/home/george/Documents/scj/productos/autoreport/packrat/lib-R"  

Reproduce the package build with RStudio's Ctrl + Alt + B using the reported R 3.2.2 and packrat setup. Start with the build output, the subsequent library(autoreport) failure, and .libPaths() to trace where the package is installed versus where the session looks. Done means the package built through packrat can be loaded in the restarted R session.