Scale_size_manual continuous value supplied to discrete scale

discrete value supplied to continuous scale ggplot
discrete value supplied to continuous scale
error: continuous value supplied to discrete scale scale_color_brewer
scale_fill_manual continuous
scale_color_brewer continuous
scale discrete ggplot2geom_point continuous color scale
error: continuous value supplied to discrete scale heatmap

Unlike continuous scales, discrete scales can easily show missing values, scale_size_manual() , etc. work on the aesthetics specified in the scale name:"Error: Continuous value supplied to discrete scale" in default data set example mtcars and ggplot2. Yeah, I was able to fix it by converting the color and How to deal with the "Error: Continuous value supplied to discrete scale" in R - 2 R programming examples - Reproducible information - R tutorial. The “discrete value supplied to continuous scale” message is caused by erroneous use of the scale function along with ggplot(). The mistake in this example The following syntax shows how to avoid the “Error: Continuous value supplied to discrete scale”. For this, we have to convert our grouping variable to the