我通常自己检查更新，以确保我拥有最新的一切。今天当我再次去检查更新时，列表中什么都没有！所以我Install Now还是点击。软件更新程序给我以下错误：
包依赖关系无法解决。
可能由于缺少或无法安装的必需附加软件包而导致此错误。此外，不允许同时安装的软件包之间可能存在冲突。
我在Ubuntu面板上也有一个红色图标，显示以下消息：
发生错误，请从右键菜单中运行Package Manager或在终端中apt-get看看有什么问题。错误消息为：“错误：标记升级（E：Error，pkgProblemResolver :: Resolve生成的中断，这可能是由保留的软件包引起的。）”。这通常意味着您安装的软件包具有未满足的依赖性。
。因此，我打开了Synaptic，然后单击Mark All Upgrades。它希望摆脱至少一百种不同的软件包（其中很多对于Ubuntu的工作至关重要！）来安装少量软件包！无论如何，当我标记它们时，我得到：
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
W: Ignoring file 'getdeb.list.bck' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
W: Ignoring file 'getdeb.list.bck' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
我决定点击Edit > Fix Broken Packages，但这样做后，我得到：
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
E: Unable to correct dependencies
软件包gvfs-daemons和libstdc++6被标记为已损坏，但是我不想为了解决依赖关系而删除那么多软件包。我该怎么办？！？
输出sudo apt-get install -f：
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 10 not upgraded.
N: Ignoring file 'getdeb.list.bck' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'getdeb.list.bck' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
输出sudo apt-get install --reinstall gvfs-daemons libstdc++6：
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 3 reinstalled, 0 to remove and 10 not upgraded.
Need to get 660 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://archive.ubuntu.com/ubuntu/ trusty-updates/main gvfs-daemons amd64 1.20.3-0ubuntu1.2 [108 kB]
Get:2 http://ppa.launchpad.net/dolphin-emu/gcc-for-dolphin/ubuntu/ trusty/main libstdc++6 amd64 4.9.2-0ubuntu1~14.04 [269 kB]
Get:3 http://ppa.launchpad.net/dolphin-emu/gcc-for-dolphin/ubuntu/ trusty/main libstdc++6 i386 4.9.2-0ubuntu1~14.04 [283 kB]
Fetched 660 kB in 10s (60.1 kB/s)
(Reading database ... 1325331 files and directories currently installed.)
Preparing to unpack .../libstdc++6_4.9.2-0ubuntu1~14.04_amd64.deb ...
Unpacking libstdc++6:amd64 (4.9.2-0ubuntu1~14.04) over (4.9.2-0ubuntu1~14.04) ...
Preparing to unpack .../libstdc++6_4.9.2-0ubuntu1~14.04_i386.deb ...
Unpacking libstdc++6:i386 (4.9.2-0ubuntu1~14.04) over (4.9.2-0ubuntu1~14.04) ...
Setting up libstdc++6:amd64 (4.9.2-0ubuntu1~14.04) ...
Setting up libstdc++6:i386 (4.9.2-0ubuntu1~14.04) ...
Processing triggers for libc-bin (2.19-0ubuntu6.6) ...
(Reading database ... 1325331 files and directories currently installed.)
Preparing to unpack .../gvfs-daemons_1.20.3-0ubuntu1.2_amd64.deb ...
Unpacking gvfs-daemons (1.20.3-0ubuntu1.2) over (1.20.3-0ubuntu1.2) ...
Setting up gvfs-daemons (1.20.3-0ubuntu1.2) ...
N: Ignoring file 'getdeb.list.bck' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'getdeb.list.bck' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
输出apt-cache policy gvfs-daemons x11-utils libstdc++6 gcc-4.9-base：
gvfs-daemons:
Installed: 1.20.3-0ubuntu1.2
Candidate: 1.20.3-0ubuntu1.2
Version table:
*** 1.20.3-0ubuntu1.2 0
500 archive.ubuntu.com/ubuntu trusty-updates/main amd64 Packages
100 /var/lib/dpkg/status
1.20.1-1ubuntu1 0
500 archive.ubuntu.com/ubuntu trusty/main amd64 Packages
x11-utils:
Installed: 7.7+1
Candidate: 7.7+1
Version table:
*** 7.7+1 0
500 archive.ubuntu.com/ubuntu trusty/main amd64 Packages
100 /var/lib/dpkg/status
libstdc++6:
Installed: 4.9.2-0ubuntu1~14.04
Candidate: 4.9.2-0ubuntu1~14.04
Version table:
*** 4.9.2-0ubuntu1~14.04 0
500 ppa.launchpad.net/dolphin-emu/… trusty/main amd64 Packages
100 /var/lib/dpkg/status
4.8.4-2ubuntu1~14.04 0
500 archive.ubuntu.com/ubuntu trusty-updates/main amd64 Packages
4.8.2-19ubuntu1 0
500 archive.ubuntu.com/ubuntu trusty/main amd64 Packages
gcc-4.9-base:
Installed: 4.9.2-0ubuntu1~14.04
Candidate: 4.9.3-0ubuntu4
Version table:
4.9.3-0ubuntu4 0
500 archive.ubuntu.com/ubuntu trusty-proposed/main amd64 Packages
*** 4.9.2-0ubuntu1~14.04 0
500 ppa.launchpad.net/dolphin-emu/… trusty/main amd64 Packages
100 /var/lib/dpkg/status
4.9.1-0ubuntu1 0
500 archive.ubuntu.com/ubuntu trusty-updates/main amd64 Packages
4.9-20140406-0ubuntu1 0
500 archive.ubuntu.com/ubuntu trusty/main amd64 Packages
N: Ignoring file 'getdeb.list.bck' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'getdeb.list.bck' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
更新：问题已返回。如先前所建议，trusty-proposed仍然没有检查源，但现在在主频道（trusty-updates）中也出现了同样的问题。我需要解决依赖性，否则我将无法轻松更新所有内容。我已将信息存储在Ubuntu Pastebin中。
运行
—
2015年
sudo apt-get install --reinstall gvfs-daemons libstdc++6并将输出添加到您的问题。
我看不到问题= \
—
AB
sudo apt-get install -f，然后按n。将输出添加到游览问题。