We've tried upgrading VM Invoice from ARTIO server, from version 2.0.10 to 2.0.25 but we're getting errors:

File does not exist in upgrade package: //admin/libraries/tcpdf/qrcode.php
File does not exist in upgrade package: //admin/libraries/tcpdf/datamatrix.php
File does not exist in upgrade package: //admin/libraries/tcpdf/barcodes.php

How to fix this problem?

There are some barcode systems out there that work great for validating the Barcodes this system generates. It would be an amazing help if there was a way to export a list of barcodes only. It is already there with the .csv but it would be a great help if you could export a barcode list with the Barcodes all in a single column. Leaving the Current .csv should also occur, this is helpful for all other information.