ggplotly returns group_by_ error for ggplot with undefined dataframe

The following ggplot2 command fails when executed in ggplotly:

ggplot()+geom_line(aes(x = c(1,2,3,4), y = c(1,2,3,4), group = c(1,1,2,2))) #works

ggplotly(ggplot()+geom_line(aes(x = c(1,2,3,4), y = c(1,2,3,4), group = c(1,1,2,2)))) #fails

#>Error in UseMethod("group_by_") : 
#> no applicable method for 'group_by_' applied to an object of class "waiver"

This error can be addressed by assigning the data to a data frame and explicitly mapping the variables to the data frame within the ggplot call:

 df <- data.frame(x = c(1,2,3,4), y = c(1,2,3,4), group = c(1,1,2,2))

ggplotly(ggplot()+geom_line(data = df, aes(x = x, y = y, group = group))) #works 

ggplotly(ggplot()+geom_line(aes(x = df$x, y = df$y, group = df$group))) #fails

#>Error in UseMethod("group_by_") : 
#> no applicable method for 'group_by_' applied to an object of class "waiver"

Commencez par exécuter les deux exemples ggplotly de l’issue et comparez les cas qui réussissent et ceux qui échouent. Suivez la gestion par ggplotly des mappings aes inline et de la valeur de group représentée par waiver. Le travail est terminé lorsque les deux exemples se rendent sans l’erreur group_by_ tout en conservant le comportement des lignes groupées.