Debian
以下包裹已被保留
The following packages have been kept back: click click-dev gir1.2-click-0.4 libclick-0.4-0 0但
很明顯，所有這些軟體包要麼在某處被擱置，要麼處於某種衝突中，要麼會導致衝突。我不明白為什麼或在哪裡。它們既不是鎖定在 Synaptic 中，也不是由
aptor阻止aptitude。我很好奇為什麼這些包裹被擱置了？我無法通過
apt-get dist-upgrade, 或apt-get --with-new-pkgs upgrade.我在 Linux Mint 17.3 上。
apt-cache policy click click-dev gir1.2-click-0.4 libclick-0.4-0:click: Installed: 0.4.42+16.04.20151229-0~467~ubuntu14.04.1 Candidate: 0.4.43+16.04.20160203-0~606~ubuntu14.04.1 Version table: 0.4.43+16.04.20160203-0~606~ubuntu14.04.1 0 500 http://ppa.launchpad.net/ubuntu-sdk-team/ppa/ubuntu/ trusty/main amd64 Packages *** 0.4.42+16.04.20151229-0~467~ubuntu14.04.1 0 100 /var/lib/dpkg/status 0.4.21.1ubuntu0.2 0 500 http://mirror.vutbr.cz/ubuntu/archive/ trusty-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages 0.4.21.1 0 500 http://mirror.vutbr.cz/ubuntu/archive/ trusty/main amd64 Packages click-dev: Installed: 0.4.42+16.04.20151229-0~467~ubuntu14.04.1 Candidate: 0.4.43+16.04.20160203-0~606~ubuntu14.04.1 Version table: 0.4.43+16.04.20160203-0~606~ubuntu14.04.1 0 500 http://ppa.launchpad.net/ubuntu-sdk-team/ppa/ubuntu/ trusty/main amd64 Packages *** 0.4.42+16.04.20151229-0~467~ubuntu14.04.1 0 100 /var/lib/dpkg/status 0.4.21.1ubuntu0.2 0 500 http://mirror.vutbr.cz/ubuntu/archive/ trusty-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages 0.4.21.1 0 500 http://mirror.vutbr.cz/ubuntu/archive/ trusty/main amd64 Packages gir1.2-click-0.4: Installed: 0.4.42+16.04.20151229-0~467~ubuntu14.04.1 Candidate: 0.4.43+16.04.20160203-0~606~ubuntu14.04.1 Version table: 0.4.43+16.04.20160203-0~606~ubuntu14.04.1 0 500 http://ppa.launchpad.net/ubuntu-sdk-team/ppa/ubuntu/ trusty/main amd64 Packages *** 0.4.42+16.04.20151229-0~467~ubuntu14.04.1 0 100 /var/lib/dpkg/status 0.4.21.1ubuntu0.2 0 500 http://mirror.vutbr.cz/ubuntu/archive/ trusty-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages 0.4.21.1 0 500 http://mirror.vutbr.cz/ubuntu/archive/ trusty/main amd64 Packages libclick-0.4-0: Installed: 0.4.42+16.04.20151229-0~467~ubuntu14.04.1 Candidate: 0.4.43+16.04.20160203-0~606~ubuntu14.04.1 Version table: 0.4.43+16.04.20160203-0~606~ubuntu14.04.1 0 500 http://ppa.launchpad.net/ubuntu-sdk-team/ppa/ubuntu/ trusty/main amd64 Packages *** 0.4.42+16.04.20151229-0~467~ubuntu14.04.1 0 100 /var/lib/dpkg/status 0.4.21.1ubuntu0.2 0 500 http://mirror.vutbr.cz/ubuntu/archive/ trusty-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages 0.4.21.1 0 500 http://mirror.vutbr.cz/ubuntu/archive/ trusty/main amd64 Packages調試：
apt-get -o Debug::pkgProblemResolver=true install click click-dev gir1.2-click-0.4 libclick-0.4-0 Reading package lists... Done Building dependency tree Reading state information... Done Starting pkgProblemResolver with broken count: 0 Starting 2 pkgProblemResolver with broken count: 0 Done The following extra packages will be installed: python3-click-package Suggested packages: ubuntu-app-launch-tools upstart-app-launch-tools Recommended packages: debootstrap The following packages will be REMOVED: python3-click The following NEW packages will be installed: python3-click-package The following packages will be upgraded: click click-dev gir1.2-click-0.4 libclick-0.4-0 4 upgraded, 1 newly installed, 1 to remove and 0 not upgraded. Need to get 146 kB of archives. After this operation, 1,024 B of additional disk space will be used. Do you want to continue? [Y/n]重現問題：
apt-get dist-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages have been kept back: click click-dev gir1.2-click-0.4 libclick-0.4-0 0 upgraded, 0 newly installed, 0 to remove and 4 not upgraded.修復後：
apt-get install click click-dev gir1.2-click-0.4 libclick-0.4-0 Reading package lists... Done Building dependency tree Reading state information... Done click-dev is already the newest version. click-dev set to manually installed. click is already the newest version. libclick-0.4-0 is already the newest version. libclick-0.4-0 set to manually installed. gir1.2-click-0.4 is already the newest version. gir1.2-click-0.4 set to manually installed. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
根據海報，以下命令有效
apt-get -o Debug::pkgProblemResolver=true install click click-dev gir1.2-click-0.4 libclick-0.4-0並給出結果
Reading package lists... Done Building dependency tree Reading state information... Done Starting pkgProblemResolver with broken count: 0 Starting 2 pkgProblemResolver with broken count: 0 Done The following extra packages will be installed: python3-click-package Suggested packages: ubuntu-app-launch-tools upstart-app-launch-tools Recommended packages: debootstrap The following packages will be REMOVED: python3-click The following NEW packages will be installed: python3-click-package The following packages will be upgraded: click click-dev gir1.2-click-0.4 libclick-0.4-0 4 upgraded, 1 newly installed, 1 to remove and 0 not upgraded. Need to get 146 kB of archives. After this operation, 1,024 B of additional disk space will be used. Do you want to continue? [Y/n]因此，執行顯式
apt-get install.我讓發布者在沒有調試標誌的情況下執行它，看看它是否給出了相同的結果，但顯然他已經執行了調試版本。