I have been getting this every time I try to install ggmap
:
WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:
https://cran.rstudio.com/bin/windows/Rtools/
Installing package into ‘C:/Users/Julianne/Documents/R/win-library/3.6’
(as ‘lib’ is unspecified)
Warning in install.packages :
dependency ‘rjson’ is not available
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.6/ggmap_3.0.0.zip'
Content type 'application/zip' length 4698501 bytes (4.5 MB)
downloaded 4.5 MB
package ‘ggmap’ successfully unpacked and MD5 sums checked
The downloaded binary packages are in
C:\Users\Julianne\AppData\Local\Temp\RtmpUTtA97\downloaded_packages
I have installed Rtools but still cannot install ggmap
or rjson
.