R ggmap Error: object 'f' not found

Question

After I install rnoaa packages, my ggmap package is not working. I couldn't even do the simple example:

>library(ggmap)

>qmap(location = "boston university")

Error in get("f", environment(CoordMap$train)) : object 'f' not found

Does anyone have the same problem? Thank you!

Answer 1

Reverting to ggplot v. 2.2.0 worked for me: devtools::install_github("hadley/[email protected]")

Answer 2

1. Reinstall R and R Studio
2. Library(devtools) devtools::install_github("dkahle/ggmap") devtools::install_github("hadley/ggplot2")

Had the same error, and works fine now.

Answer 3

I had this problem as well, uninstalling ggplot2 and reinstalling it from CRAN worked for me.