It appears that the ggproto function definitions for new versions of ggplot needs to include "self" as the first argument (https://github.com/tidyverse/ggplot2/blob/master/R/geom-.r#L92), or ggplot will throw an error ("Error: GeomPolypath was built with an incompatible version of ggproto. Please reinstall the package that provides this extension."). I couldn't get this message to go away until I added "self" to the function definition, but perhaps this is specific to my system. Thoughts?
It appears that the ggproto function definitions for new versions of ggplot needs to include "self" as the first argument (https://github.com/tidyverse/ggplot2/blob/master/R/geom-.r#L92), or ggplot will throw an error ("Error: GeomPolypath was built with an incompatible version of ggproto. Please reinstall the package that provides this extension."). I couldn't get this message to go away until I added "self" to the function definition, but perhaps this is specific to my system. Thoughts?