SharePoint REST file attachment error status "Conflict"

status Code: 409
status Text :conflict

Root Cause:After doing some updates to List Item using CSOM or REST, list item version will update, the list item instance which you are having will not work.
Solution: Get latest list item instance
Code Ex:

	var listName = "MyList";
	var idd = "20";
	var objCtx = new SP.ClientContext.get_current();
	var MyList = objCtx.get_web().get_lists().getByTitle(listName);
	objCtx.load(MyList);
	var theList = objCtx.get_web().get_lists().getByTitle(listName);
	var listItem = theList.getItemById(idd);
	listItem.set_item("Title", "Update");
	listItem.update();
	objCtx.load(listItem);
	objCtx.executeQueryAsync(
	function () {
	//File Upload
	//I have 5 attachments, I am going to upload 5
	for (var i = 0; i < 5; i++) {
	uploadFile(i);//My custom function to upload file.......
	//Reload Item-Start
	var objcontext = new SP.ClientContext();
	var MyList1 = objcontext.get_web().get_lists().getByTitle(listName);
	listItem = MyList1.getItemById(idd);
	objcontext.load(listItem, "Title");
	objcontext.executeQueryAsync(function () {
	console.log("New Item instance Done");
	}, function (sender, args) {
	console.log("New List Item instance Fail" + args.get_message());
	});
	//Reload Item- End
	}
	//File Upload Done
	},
	function (sender, args) {
	console.log(args.get_message()+ "Error while update");
	}
	);

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