删除的 Skype 仍然存在有关 Skype 的 apt get update 错误

Question

我已经从 ubuntu 20.04 中彻底清除了 Skype，因为每次 apt-get update 时我都会收到以下错误并且找不到解决方案：

Err:4 https://repo.skype.com/deb stable InRelease                        
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1F3045A5DF7587C3
  
  Reading package lists... Done
W: GPG error: https://repo.skype.com/deb stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1F3045A5DF7587C3
E: The repository 'https://repo.skype.com/deb stable InRelease' is not signed.

然而，即使我已经删除了公钥、所有 Skype 安装和 Snap，在 apt-get update 时我仍然收到上述错误。

到底是怎么回事？

Answer 1

已解决：

sudo rm /etc/apt/sources.list.d/skype-stable.list
sudo rm /etc/apt/sources.list.d/skype-stable.save