[R-sig-Geo] Missing projection file?

[Elaine McVey]

I'm new to the list and getting started with using R for geospatial data.
I'm having a problem I can't solve in which the projection file seems to be
missing.  This is the error I get:

proj4string(d) <- CRS("+init=epsg:28992")

Error in CRS("+init=epsg:28992") : no system list, errno: 2


It's confusing because when I load the package, it seems to successfully
autodetect the PROJ.4 files:

> library(rgdal)
rgdal: version: 0.9-2, (SVN revision 526)
Geospatial Data Abstraction Library extensions to R successfully loaded
Loaded GDAL runtime: GDAL 1.11.2, released 2015/02/10
Path to GDAL shared files:
Loaded PROJ.4 runtime: Rel. 4.9.1, 04 March 2015, [PJ_VERSION: 491]
Path to PROJ.4 shared files: (autodetected)


But when I do this, it returns zero:

.Call("PROJcopyEPSG", tempfile(), PACKAGE = "rgdal")


The only answer I've found from googling this is that epsg has to be
lowercase, which it is in my code.

I'm on a Mac running Yosemite, with R 3.2.0, and working inside RStudio
(version 0.99.441).  Other packages and versions from my session info:

rgeos_0.3-8          ggmap_2.4            ggplot2_1.0.1        rgdal_0.9-2
         leaflet_0.0.15       tidyr_0.2.0          dplyr_0.4.1
 UScensus2010blk_1.00 UScensus2010_0.11    foreign_0.8-63
maptools_0.8-36      sp_1.1-0

Can anyone help me figure this out?  I'm surprised I didn't find more on
this problem, as I can't be the only one having it . . .

---

Elaine McVey
Data Scientist
Transloc

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