Ошибка недостающих ключей GPG в LinuxMint 19

Я использую linuxmint 19 Tara на Acer Aspire E1-471 и не могу исправить ошибки отсутствующих ключей. Помните, что после поиска в Google я попытался использовать sudo apt-get install -f, sudo dpkg --configure -a и обновить все ключи. Пытаясь установить conky-manager, я пришел с таким выводом:

Выход для добавления репозитория:

$ sudo apt-add-repository -y ppa:teejee2008/ppa You are adding the following ppa repository: More information: https://launchpad.net/~teejee2008/+archive/ubuntu/ppa Executing: /tmp/apt-key-gpghome.wWkcgHDoKc/gpg.1.sh --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 2D0F61F0 gpg: key B5B116B72D0F61F0: 13 signatures not checked due to missing keys gpg: key B5B116B72D0F61F0: "Launchpad PPA for Tony George" not changed gpg: Total number processed: 1 gpg: unchanged: 1 

Выход для списка ключей apt:

 $ apt-key list /etc/apt/trusted.gpg -------------------- pub rsa1024 2009-10-22 [SC] 60C3 1780 3A41 BA51 845E 371A 1E93 77A2 BA9E F27F uid [ unknown] Launchpad Toolchain builds  pub rsa1024 2016-10-25 [C] FF82 FE03 1D38 5CDE 9955 D098 3369 E33F BA9E F27F uid [ unknown] Totally Legit Signing Key <mallory@example.org>  pub rsa2048 2016-06-22 [SC] [expires: 2021-06-21] D404 0146 BE39 7250 9FD5 7FC7 1F30 45A5 DF75 87C3 uid [ unknown] Skype Linux Client Repository <se-um@microsoft.com> sub rsa2048 2016-06-22 [E] [expires: 2021-06-21]  pub rsa4096 2015-11-23 [SC] [expires: 2025-11-20] 4A9E 0F43 60DC 0D17 956D 904E 818A 435C 5FCB F54A uid [ unknown] Sebastian Lackner (WineHQ packages) <sebastian@fds-team.de> sub rsa4096 2015-11-23 [E] [expires: 2025-11-20]  pub rsa1024 2010-12-27 [SC] 3C48 D161 24B5 0277 AF10 D27F 32B1 8A12 60D8 DA0B uid [ unknown] Launchpad PPA for YannUbuntu  pub rsa2048 2010-09-06 [SC] 7716 412F B5B5 0060 D47C F42B 6856 E1DB 1AC8 2609 uid [ unknown] David Hart (codelite key) <david@codelite.co.uk> sub rsa2048 2010-09-06 [E]  pub rsa4096 2018-02-16 [SC] FE2D 6077 11ED D0FF 4D06 9EC7 0F64 44BB 6902 FCAF uid [ unknown] Launchpad PPA for Oguzhan Inan  pub rsa4096 2014-11-27 [SC] 401E 8827 DA4E 93E4 4C7D 01E6 D351 6414 7CA6 9FC4 uid [ unknown] Launchpad PPA for qBittorrent Team  pub rsa4096 2016-05-24 [SC] 302F 0738 F465 C153 5761 F965 A661 6109 451B BBF2 uid [ unknown] Linux Mint Repository Signing Key <root@linuxmint.com> sub rsa4096 2016-05-24 [E]  pub rsa1024 2013-01-14 [SC] 1B32 B87A BAEE 3572 18F6 B48C B5B1 16B7 2D0F 61F0 uid [ unknown] Launchpad PPA for Tony George  /etc/apt/trusted.gpg.d/microsoft.gpg ------------------------------------ pub rsa2048 2015-10-28 [SC] BC52 8686 B50D 79E3 39D3 721C EB3E 94AD BE12 29CF uid [ unknown] Microsoft (Release signing) <gpgsecurity@microsoft.com>  /etc/apt/trusted.gpg.d/spotify-2017-07-25-341D9410.gpg ------------------------------------------------------ pub rsa4096 2017-07-25 [SC] [expired: 2018-07-25] 0DF7 31E4 5CE2 4F27 EEEB 1450 EFDC 8610 341D 9410 uid [ expired] Spotify Public Repository Signing Key <tux@spotify.com>  /etc/apt/trusted.gpg.d/spotify-2018-05-23-48BF1C90.gpg ------------------------------------------------------ pub rsa4096 2018-05-23 [SC] [expires: 2019-08-16] 931F F8E7 9F08 7613 4EDD BDCC A87F F9DF 48BF 1C90 uid [ unknown] Spotify Public Repository Signing Key <tux@spotify.com>  /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-archive.gpg ------------------------------------------------------ pub rsa4096 2012-05-11 [SC] 790B C727 7767 219C 42C8 6F93 3B4F E6AC C0B2 1F32 uid [ unknown] Ubuntu Archive Automatic Signing Key (2012) <ftpmaster@ubuntu.com>  /etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg ------------------------------------------------------ pub rsa4096 2012-05-11 [SC] 8439 38DF 228D 22F7 B374 2BC0 D94A A3F0 EFE2 1092 uid [ unknown] Ubuntu CD Image Automatic Signing Key (2012) <cdimage@ubuntu.com> 

Может быть, я сделал FrankenMint: / Как мне это исправить?