每当我使用 sudo apt-get update 时,都会显示此错误:
Hit http://ppa.launchpad.net trusty/main amd64 Packages
Hit http://ppa.launchpad.net trusty/main i386 Packages
Hit http://ppa.launchpad.net trusty/main Translation-en
Hit http://ppa.launchpad.net trusty Release.gpg
Ign http://ppa.launchpad.net trusty Release
Ign http://ppa.launchpad.net trusty Release
Hit http://ppa.launchpad.net trusty Release
Hit http://ppa.launchpad.net trusty Release
Ign http://ppa.launchpad.net trusty/main amd64 Packages/DiffIndex
Ign http://ppa.launchpad.net trusty/main i386 Packages/DiffIndex
Hit http://ppa.launchpad.net trusty/main amd64 Packages
Hit http://ppa.launchpad.net trusty/main i386 Packages
Hit http://ppa.launchpad.net trusty/main amd64 Packages
Hit http://ppa.launchpad.net trusty/main i386 Packages
Err http://ppa.launchpad.net trusty/main Sources
403 Forbidden
Ign http://ppa.launchpad.net trusty/main Translation-en_US
Ign …Run Code Online (Sandbox Code Playgroud) software-center updates update-manager package-management apt