我正在尝试在 Debian 服务器上安装libmysql++-dev，但收到以下错误“无法找到软件包”。
root@rs-dal-karthik-test:~# apt-cache search libmysql++-dev
root@rs-dal-karthik-test:~# apt-get install libmysql++-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libmysql++-dev
E: Couldn't find any package by regex 'libmysql++-dev'
我更新/etc/apt/sources.list如下：
root@rs-dal-karthik-test:~# cat /etc/apt/sources.list
deb http://mirror.rackspace.com/debian buster main contrib non-free
deb-src http://mirror.rackspace.com/debian buster main contrib non-free
deb http://mirror.rackspace.com/debian-security/ buster/updates main contrib non-free
deb-src http://mirror.rackspace.com/debian-security/ buster/updates main contrib non-free
root@rs-dal-karthik-test:~#
我apt-get upgrade在更新sources.list文件后运行，但似乎没有任何作用。
官方 Debian buster/sid 链接有软件包信息https://packages.debian.org/sid/libmysql++-dev。
以下是操作系统详细信息：
root@rs-dal-karthik-test:~# cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux buster/sid"
NAME="Debian GNU/Linux"
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
root@rs-dal-karthik-test:~#
我不确定如何在我的服务器上安装该软件包。
编辑 正如下面的评论中提到的，修改sources.list后更新输出集
root@rs-dal-karthik-test:~# cat /etc/apt/sources.list
deb http://mirror.rackspace.com/debian buster main contrib non-free
deb-src http://mirror.rackspace.com/debian buster main contrib non-free
deb http://mirror.rackspace.com/debian-security/ buster/updates main contrib non-free
deb-src http://mirror.rackspace.com/debian-security/ buster/updates main contrib non-free
deb http://ftp.us.debian.org/debian unstable main contrib non-free
deb http://ftp.us.debian.org/debian testing main contrib non-free
root@rs-dal-karthik-test:~# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
gir1.2-glib-2.0 libgirepository-1.0-1 libjs-sphinxdoc libjs-underscore libpython-all-dev python-all python-all-dev python-asn1crypto python-cffi-backend python-configparser python-crypto python-cryptography python-dbus
python-entrypoints python-enum34 python-gi python-idna python-ipaddress python-keyring python-keyrings.alt python-pip-whl python-secretstorage python-six python-wheel python-xdg
Use 'apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
root@rs-dal-karthik-test:~# apt-get install libmysql++-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libmysql++-dev
E: Couldn't find any package by regex 'libmysql++-dev'
root@rs-dal-karthik-test:~#