Ubuntu 18.04添加gpg密钥失败，出现gpg-agent未找到错误

Question

尝试将我们的基本镜像迁移到稳定的Ubuntu 18.04，当我们尝试添加gpg密钥时，得到这个错误：

root@77ff14f29cab:/# apt-key add apt-key.gpg 
gpg: failed to start agent '/usr/bin/gpg-agent': No such file or directory
gpg: can't connect to the agent: No such file or directory
gpg: failed to start agent '/usr/bin/gpg-agent': No such file or directory
gpg: can't connect to the agent: No such file or directory

Answer 1

您很可能遗漏了gpg-agent包：

gpg-agent/testing,unstable,now 2.2.5-1 amd64 [installed,automatic]
  GNU privacy guard - cryptographic agent

您应该运行的命令是apt install gpg-agent。