Hi József, On 23-08-2021 14:38, Vásárhelyi József wrote: > E: The "stable-updates" value is invalid APT::Default Release > setuting, does not exist in the edition(version) sources > > E: _cache->open() failed, please report.
What's the content of your /etc/apt/sources.list file and what's the content of files in /etc/apt/source.list.d/? We released a new version of Debian on Saturday 14 August. You seem to have "stable" listed in your apt sources, which can give you surprises if you're not expecting a new Debian release. Were you aware we released a new version and were you expected to upgrade? Paul
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