File not found when using Drive.Files.get(path) - google-apps-script

Question

I am trying to automate attaching and sending emails using Gscripts. Each recipient has his own unique attachment so I have a Google sheet containing the details:
Column A contains the email addresses.
Column B contains the message.
Column D contains the filename of the attachment along with the file extension.
Here's my code:
function sendEmails() {
var sheet = SpreadsheetApp.getActiveSheet();
var rowEmails = sheet.getRange(1,1,3);
var rowMessage = sheet.getRange(1,2,3);
var rowAttachments = sheet.getRange(1,4,3);
var vEmails = rowEmails.getValues();
var vMessage = rowMessage.getValues();
var vAttachments = rowAttachments.getValues()
for (i in vEmails) {
var emailAddress = vEmails[1] + '';
var message = vMessage[1];
var subject = "Test"
var path = 'certs\\' + vAttachments[i]
var file = Drive.Files.get(path);
MailApp.sendEmail(emailAddress, subject, vMessage[1], {attachments: files});
}
}
Everything works well but when it comes to var file = Drive.Files.get(path), I get an error saying no file is found. I checked my drive and I'm sure it is there. I've also checked the Drive API. I don't know what is wrong.

Answer 1

Something like this might be a little closer to working:
function sendEmails() {
var sheet=SpreadsheetApp.getActiveSheet();
var Emails=sheet.getRange(1,1,3).getValues();
var Message=sheet.getRange(1,2,3).getValues();
var fileids=sheet.getRange(1,3,3).getValues();//you need to add file ids
Emails.forEach(function(r,i){
MailApp.sendEmail(Emails[i][0],"Test",Message[i][0],{attachments:[DriveApp.getFileById(fileids[i][0])]});
});
}

Answer 2

The code in the question has several flaws:
path : Google Drive doesn't use "path"
for in / vAttachments[i]: a different property name is assigned to the variable on each iteration but vAttachments hasn't named properties, so vAttachments[i] will return null on each iteration.
The files property on the options should be an Array.
How to "fix" the script
The way to directly get files in Google Drive is by using file ids.
If you want to get files by "path", first your script should get the folder, then look for the file inside that folder but bear in mind that getting a folder/file by name returns a folder/file iterator
Instead of for in use for of or use for (most of the scripts I have seen usen use for)