Good morning My problem is that I get this message when I start synaptic: E: The value "buster" is not valid for APT::Default-Release as that distribution is not available in the sources. E: _cache->open() failed, please report.
I have checked /etc/apt/ and no "buster" appears in any file. My distribution is bullseye to which I migrated a few days ago. Regards Thanks Pd is an automatic translation Translated with www.DeepL.com/Translator (free version) Sent from [ProtonMail](https://protonmail.com), Swiss-based encrypted email. Sent with [ProtonMail](https://protonmail.com/) Secure Email.