ggplot2 error (ffi_standalone_check_number_1.0.7)

[rokinroo]

Having trouble with ggplot2. It was working fine, but now I get this error message.
This example is using the ggplot2 bundled data set mpg, but I get the same message with any data set/code that I try.

Error in .standalone_types_check_dot_call(ffi_standalone_check_number_1.0.7, :
object 'ffi_standalone_check_number_1.0.7' not found

ggplot(mpg, aes(displ, hwy)) +
geom_point()

[FJCC]

There is a suggested solution in this stackoverflow thread

R for Data Science Chapter 2.2.2 Already getting error messages before I've started

[jrkrideau]

@rokinroo

ggplot(mpg, aes(displ, hwy)) +
geom_point()

Unless you have created a data.frame called mpg it looks like you want to use the mtcars data set. mtcars does not have variables named "displ" or "hwy"

This should plot:

ggplot(mtcars, aes(disp, hp)) + geom_point()

[EconProf]

mpg is a dataset in the ggplot2 package

[rokinroo]

I can't thank you enough- took me a bit to fix, but that was definitely the problem