我想在 Ubuntu 21.04 上安装 IRC 客户端 Xchat。这些是我在网络的各个部分找到的运行说明：
sudo apt install xchat
但是，当我运行它时，我收到此错误：
Package xchat is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'xchat' has no installation candidate
似乎该软件包xchat在 Ubuntu 20.10 和 21.04 的 Ubuntu 宇宙存储库中不再可用。那正确吗？还是我错过了什么？
https://packages.ubuntu.com/search?suite=all&searchon=names&keywords=xchat
xchat不维护，hexchat通常是首选xchat需要 python2 (EOL) 并且尚未移植到 python3。https://packages.ubuntu.com/focal/xchat