我正在尝试安装 Pop-theme，这是一个好看的主题，我真的很想安装它。Github Repo概述了我已经尝试过的步骤：
sudo add-apt-repository ppa:system76/pop
sudo apt-get update
sudo apt-get install pop-theme
我得到E：无法找到包 pop-theme
~$ sudo apt install pop-theme
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package pop-theme
手动安装也会出现同样的问题。我也知道这不是错字问题。
$ sudo apt install libsass0 sassc inkscape optipng libglib2.0-dev-bin
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package sassc
E: Unable to locate package libglib2.0-dev-bin
E: Couldn't find any package by glob 'libglib2.0-dev-bin'
E: Couldn't find any package by regex 'libglib2.0-dev-bin'
回购说支持的桌面环境
* GNOME-Shell >= 3.18.3
* GNOME-Flashback >= 3.18.2
* Budgie-Desktop >= 10.2.7...
我有 GNOME Shell 3.18.5，运行 Ubuntu-Gnome 16.04。
我能够从OMG Ubuntu下载并安装 .deb 文件。