Hi all
I installed the newest version of ggmap from CRAN and get the following error (see last lines :).
> sessionInfo()
R version 3.1.2 (2014-10-31)
Platform: x86_64-apple-darwin14.1.0 (64-bit)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] ggmap_2.4 ggplot2_1.0.0 oce_0.9-14 mapproj_1.2-2 maps_2.3-9
loaded via a namespace (and not attached):
[1] colorspace_1.2-4 digest_0.6.8 geosphere_1.3-11 grid_3.1.2 gtable_0.1.2
[6] jpeg_0.1-8 lattice_0.20-29 MASS_7.3-35 munsell_0.4.2 plyr_1.8.1
[11] png_0.1-7 proto_0.3-10 Rcpp_0.11.4 reshape2_1.4.1 RgoogleMaps_1.2.0.7
[16] rjson_0.2.15 RJSONIO_1.3-0 scales_0.2.4 sp_1.0-17 stringr_0.6.2
[21] tools_3.1.2
> R.Version()
$platform
[1] "x86_64-apple-darwin14.1.0"
$arch
[1] "x86_64"
$os
[1] "darwin14.1.0"
$system
[1] "x86_64, darwin14.1.0"
$status
[1] ""
$major
[1] "3"
$minor
[1] "1.2"
$year
[1] "2014"
$month
[1] "10"
$day
[1] "31"
$`svn rev`
[1] "66913"
$language
[1] "R"
$version.string
[1] "R version 3.1.2 (2014-10-31)"
$nickname
[1] "Pumpkin Helmet"
> sunMap <- get_map(location = 'Copenhagen')
Error in readPNG(tmp) : unable to initialize libpng
In addition: Warning message:
In readPNG(tmp) :
libpng warning: Application built with libpng-1.6.16 but running with 1.5.17
I have R installed through macports which installs libpng version 1.6.16. ggmap and png were installed via CRAN.
Have anyone else experienced this issue?
Thanks in advance!
Best,
Per