我试过这个命令，但是没有用
sudo add-apt-repository ppa:leaeasy/dde
它说
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/leaeasy/dde/ubuntu disco Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
我也尝试过将“disco”改为“bionic”
/etc/apt/sources.list.d/leaeasy-ubuntu-dde-disco.list
但当我尝试用这个安装它时
sudo apt-get update
sudo apt-get install dde
它说
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
dde : Depends: dde-desktop but it is not going to be installed
Depends: deepin-wm but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
我也试过
sudo aptitude install dde
它已安装，但我无法启动 dde，startdde因为二进制文件不在路径中。
我也没有在登录菜单中看到任何 Deepin 条目。
我尝试了所有的答案无法纠正问题，您持有破损的包裹和如果存储库/PPA 没有 Release 文件，我该怎么办？但没有运气。
有人知道我该如何安装 dde 吗？