Error with jpeg() function

I am analysing datas about the occurence of butterflies on different sectors, and I tried to make a graph about some levels (too complicate to explain). It worked, but when I tried to save the image it saved only a blank one.
Can someone help me ?

here is my script (sorry it's in french but if you can answer I don't think you need the # :slight_smile: ) :

setwd("//FRNC2/Data/data/stages/mina.le-quellec/Scripts R")

I- Entrée des données ---------------------

donnees_2021 = read.csv("donnees_2021.csv")
colnames(donnees_2021) <- c("Transect", "Date",
"Noms.scientifiques", "Effectif")
stenoecie = read.csv("Stenoecie.csv")

a) Lier données avec espèces sténoèces ---------------

Prop_steno = merge(donnees_2021,stenoecie,all=TRUE)

b) Création d'un tableau prop2 en retirant les NA ---------

Prop2 = na.omit(Prop_steno)

II- Diagramme en barre espèces sténoèces en fonction transects ---------

a) On ajoute un ligne au tableau nommée Diversite_specifique ---------

Prop2$Diversite_specifique = 1

b) Diagramme ----------


ggplot(data=Prop2, aes(x=Transect, y=Diversite_specifique,
fill=STENOECIE)) +
geom_bar(stat="identity") + scale_fill_manual(values=c("gray48",

jpeg(filename =
"Proportion des différentes sténoécie en fonction des transects.jpeg")

Start the jpeg creation before the ggplot then dev off after the ggplot.

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