Exception: Invalid email: [Ljava.lang.Object | sendEmailFromTemplate - google-apps-script

Question

I get this error, even if the email address is valid. I tried to remplace createDraft by sendEmail, but the error still ongoing.
Error message
Erreur
Exception: Invalid email: [Ljava.lang.Object;#7a4edc0
sendEmailFromTemplate # Code.gs:50
function sendEmailFromTemplate() {
var sheet = SpreadsheetApp.getActiveSheet();
var selectedRow = sheet.getActiveCell().getRow();
const Nom = sheet.getRange("D" + selectedRow).getValue();
const Matricule = sheet.getRange("E" + selectedRow).getValue();
const Recepient = sheet.getRange("K" + selectedRow).getValue();
const Fonction = sheet.getRange("G" + selectedRow).getValue();
const date = new Date(sheet.getRange("C" + selectedRow).getValue());
const FormattedDATE = Utilities.formatDate(date, "GMT", "EEEEE, dd MMMM yyyy");
const FormattedDATEFR = LanguageApp.translate(FormattedDATE, 'en', 'fr');
const Adresse = sheet.getRange("J" + selectedRow).getValue();
const UADM = sheet.getRange("F" + selectedRow).getValue();
const Type = sheet.getRange("B" + selectedRow).getValue();
const Check = sheet.getRange("A" + selectedRow).getValue();
if (Check !== true) {
return Logger.log("Not sending email as check is not true in column A");
}
const TemplateTexte = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Modele_Bienvenue").getRange(4, 1).getValue();
const fileId = "1NHqn0-1gG1fmNxfvHuYQIIbtf4aOtZQB"; // Added: Please set the file ID of the logo image.
const blob = DriveApp.getFileById(fileId).getBlob(); // Added
const CorpsMessage = TemplateTexte.
replace("{Nom}",Nom).
replace("{Matricule}",Matricule).
replace("{Adresse}",Adresse).
replace("{UADM}",UADM).
replace("{Date}", FormattedDATEFR.
replace("{Fonction}",Fonction));
const Objet = "Confirmation date d'entrée en fonction - " + Fonction + " - " + Nom;
const html = CorpsMessage.
replace(/\n/g, '<br>').
replace('{LOGO}', '<img src="cid:logo">');
if (validateEmail(Recepient)) {
var cc = [];
if (Type === "Voirie") {
cc.push("jan.bas#real.com");
} else if (Type === "Parcs") {
cc.push("mou.bou#real.com");
}
// Get all the email addresses associated with the account
const aliases = GmailApp.getAliases();
// Check if the desired alias exists in the list of aliases
if (aliases.indexOf("rh#real.com") != -1) {
const EmailDraft = GmailApp.createDraft(Recepient, Objet, CorpsMessage, {
from: "rh#real.com",
cc: cc,
htmlBody: html,
inlineImages: {logo: blob}});
} else {
// Handle the error if the alias does not exist
Logger.log("The desired alias does not exist");
}
sheet.getRange("M" + selectedRow).setValue(new Date());
sheet.getRange("A" + selectedRow).setValue(false);
} else {
Logger.log("Invalid email address: " + Recepient);
}
}
function validateEmail(Recepient) {
const re = /^(([^<>()\[\]\\.,;:\s#"]+(\.[^<>()\[\]\\.,;:\s#"]+)*)|(".+"))#((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
return re.test(String(Recepient).toLowerCase());
}

Answer 1

When I saw your script, it seems that the value of cc is an array. The value of cc is required to be a comma-separated list of email addresses to CC. I thought that this might be the reason of your current issue of About Exception: Invalid email: [Ljava.lang.Object;#7a4edc0`. In this case, how about the following modification?
From:
cc: cc,
To:
cc: cc.join(","),
Reference:
sendEmail(recipient, subject, body, options)