I use the package @capacitor/barcode-scanner version 1.0.1 but when I send a new archive to TestFlight, I have a warning about the UUIDs and the symbols:
Yes, this was an error with the version 1.0.1 and 1.0.3. I switched to the version 1.0.2 that worked without any issue.
(I will switch to v2+ in the next few days).