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Ubuntu 14.04 存储库：universe、main

运行 apt-get 更新

运行 apt-cache 策略 libssl1.0.0

ddew@ddew-wsl:~$ apt-cache policy libssl1.0.0
libssl1.0.0:
  Installed: 1.0.1f-1ubuntu2.11
  Candidate: 1.0.1f-1ubuntu2.11
  Version table:
 *** 1.0.1f-1ubuntu2.11 0
        100 /var/lib/dpkg/status
     1.0.1f-1ubuntu2 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

惊讶地发现作为候选广告的版本与 main 中可用的版本不同，并且 main 中可用的版本比已安装的版本旧。

尝试安装 libssl-dev

ddew@ddew-wsl:~$ sudo apt-get install libssl-dev
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 …