ssh: Could not resolve hostname slack-master: Name or service not known
rsync: did not see server greeting
rsync error: error starting client-server protocol (code 5) at main.c(1653) [Receiver=3.1.0]
FATAL[slack-getroles]: 'rsync --links --times -e ssh slack-master::slack/etc/roles.conf /var/cache/slack/_role_list' exited 5 at /usr/lib/slack/slack-getroles line 158.
FATAL[slack]: '/usr/lib/slack/slack-getroles' exited 5 at /usr/sbin/slack line 205.
我怀疑，这个问题从我安装 python 的 anaconda 包时就发生了。以下步骤帮助我解决了问题。
步骤 1：重新启动计算机
第 2 步：$sudo apt-get 删除松弛
第 3 步：从 Slack 网站下载最新版本的 Slack(在此处查找最新软件包 - https://slack.com/(： $wget https://downloads.slack-edge.com/linux_releases/slack-desktop-2.9.0-amd64.deb
第 4 步：$ 使用 dpkg 实用程序安装下载的软件包：sudo dpkg -i 松弛桌面-2.9.0-amd64.deb
在步骤 4 中，我们将看到以下错误：
$ sudo dpkg -i slack-desktop-2.9.0-amd64.deb
(Reading database ... 215272 files and directories currently installed.)
Preparing to unpack slack-desktop-2.9.0-amd64.deb ...
Unpacking slack-desktop (2.9.0) over (2.9.0) ...
dpkg: dependency problems prevent configuration of slack-desktop:
slack-desktop depends on python; however:
Package python is not installed.
dpkg: error processing package slack-desktop (--install):
dependency problems - leaving unconfigured
Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu5.1) ...
Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160824-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.59ubuntu1) ...
Errors were encountered while processing:
slack-desktop
$
要解决此问题：在步骤 5 中
第 5 步：使用以下内容安装缺少的依赖项：sudo apt-get install -f
$ sudo apt-get install -f
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following additional packages will be installed:
python python2.7
Suggested packages:
python-doc python-tk python2.7-doc
The following NEW packages will be installed:
python python2.7
0 upgraded, 2 newly installed, 0 to remove and 125 not upgraded.
1 not fully installed or removed.
Need to get 361 kB of archives.
After this operation, 1,009 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://in.archive.ubuntu.com/ubuntu xenial-updates/main amd64 python2.7 amd64 2.7.12-1ubuntu0~16.04.1 [224 kB]
Get:2 http://in.archive.ubuntu.com/ubuntu xenial/main amd64 python amd64 2.7.11-1 [137 kB]
Fetched 361 kB in 0s (384 kB/s)
Selecting previously unselected package python2.7.
(Reading database ... 215272 files and directories currently installed.)
Preparing to unpack .../python2.7_2.7.12-1ubuntu0~16.04.1_amd64.deb ...
Unpacking python2.7 (2.7.12-1ubuntu0~16.04.1) ...
Selecting previously unselected package python.
Preparing to unpack .../python_2.7.11-1_amd64.deb ...
Unpacking python (2.7.11-1) ...
Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu5.1) ...
Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160824-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.59ubuntu1) ...
Processing triggers for man-db (2.7.5-1) ...
Processing triggers for doc-base (0.10.7) ...
Processing 1 added doc-base file...
Setting up python2.7 (2.7.12-1ubuntu0~16.04.1) ...
Setting up python (2.7.11-1) ...
Setting up slack-desktop (2.9.0) ...
$
我假设你对 https://slack.com 的松弛感兴趣。不要通过sudo apt install slack安装它：这是另一个软件包(如果您对另一个神秘的Slack软件包感兴趣，请运行apt show slack(。
要安装松弛 https://slack.com，请按照其网站上的说明进行操作。目前，sudo snap install slack --classic一种方便的方式，也许前面有sudo apt install snap。
(不要忘记sudo apt remove slack...
对我来说，如果通过 Ubuntu 应用商店安装，我所有的程序都会失败。如果我访问网站并从他们的链接手动安装他们的软件，那么一切正常。
这样做为我解决了这个确切的问题。刚刚去了松弛网站并下载了.deb文件
我遇到了同样的问题。甚至从Slack下载松弛.deb文件也失败了。
我尝试了sudo apt reinstall slack等，但没有奏效。
解决方案：https://snapcraft.io/slack
sudo snap install slack --classic
即使它仍处于"破碎"状态，这也为我解决了它。
said@said:~$ sudo rm /usr/sbin/slack
said@said:~$ sudo ln -s /usr/lib/slack/slack /usr/sbin/slack
said@said:~$ slack