对于Debian，我今天还很陌生，因为我已经在笔记本电脑上安装了它。带有KDE桌面的Debian 10（Buster）。
我正在尝试使用突触上的刷新按钮刷新存储库索引，但是由于以下错误而停止：
An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://deb.debian.org/debian buster InRelease: gpgv, gpgv2 or gpgv1 required for verification, but neither seems installedAn error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://deb.debian.org/debian buster-updates InRelease: gpgv, gpgv2 or gpgv1 required for verification, but neither seems installedAn error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://security.debian.org/debian-security buster/updates InRelease: gpgv, gpgv2 or gpgv1 required for verification, but neither seems installedFailed to fetch http://deb.debian.org/debian/dists/buster/InRelease gpgv, gpgv2 or gpgv1 required for verification, but neither seems installedFailed to fetch http://security.debian.org/debian-security/dists/buster/updates/InRelease gpgv, gpgv2 or gpgv1 required for verification, but neither seems installedFailed to fetch http://deb.debian.org/debian/dists/buster-updates/InRelease gpgv, gpgv2 or gpgv1 required for verification, but neither seems installedSome index files failed to download. They have been ignored, or old ones used instead.
有什么办法可以摆脱这种情况？而这个错误的真正原因是什么？
