ggmap's get_map returns 'Error in gzfile(file, "rb") : cannot open the connection'
I have some R code to plot data on maps with ggmap. It was working fine last week. However, now when I run the line to get the map:
emap <- get_map(c(-2.503704,43.18735),zoom=9,maptype="roadmap",color="bw")
I get the following error:
Error in gzfile(file, "rb") : cannot open the connection
In addition: Warning message:
In gzfile(file, "rb") :
cannot open compressed file '/var/folders/2w/2wSOAL2LFUC+2QkRaR1wI++++TI/-Tmp-//Rtmpj0TMx5/ggmap/index.rds', probable reason 'No such file or directory'
I have searched this forum and the web but can't find any other threads discussing this error.
Any help is much appreciated. Regards, Noelia
PS: sessionInfo() returns the following:
R version 3.1.2 (2014-10-31)
Platform: x86_64-apple-darwin10.8.0 (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] mapproj_1.2-2 maps_2.3-9 ggmap_2.4 dplyr_0.4.1 xtable_1.7-4 ggplot2_1.0.1 reshape2_1.4.1
loaded via a namespace (and not attached):
[1] assertthat_0.1 colorspace_1.2-6 DBI_0.3.1 digest_0.6.8 geosphere_1.3-13 grid_3.1.2
[7] gtable_0.1.2 jpeg_0.1-8 labeling_0.3 lattice_0.20-31 lazyeval_0.1.10 magrittr_1.5
[13] MASS_7.3-40 munsell_0.4.2 parallel_3.1.2 plyr_1.8.1 png_0.1-7 proto_0.3-10
[19] Rcpp_0.11.5 RgoogleMaps_1.2.0.7 rjson_0.2.15 RJSONIO_1.3-0 scales_0.2.4 sp_1.0-17
[25] stringr_0.6.2 tools_3.1.2
Answer
I've experienced the same error, with code that had also previously worked. You may have already tried this, but I resolved it by simply ending the R session and restarting it.
If this does not work, try uninstalling/reinstalling R(Studio), or at least the packages involved.