GPG 错误：http://packages.osrfoundation.org

Question

当我apt-get update在 ubuntu-14.04 上使用“ ”更新时，出现以下错误，

W: GPG error: http://packages.osrfoundation.org trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 67170598AF249743

我试过按照某些论坛中给出的命令

apt-key adv --keyserver keyserver.ubuntu.com --recv-key 67170598AF249743

输出如下

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.XI2D9gTkMc --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --keyserver-options http-proxy=http://202.141.80.80:3128 --recv-key 67170598AF249743
gpg: requesting key AF249743 from hkp server keyserver.ubuntu.com
gpgkeys: key 67170598AF249743 not found on keyserver
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0

我试过了

 gpg --keyserver keyserver.ubuntu.com --recv-key 67170598AF249743

输出是

gpg: requesting key AF249743 from hkp server keyserver.ubuntu.com
gpgkeys: key 67170598AF249743 not found on keyserver
gpg: no valid OpenPGP data found.
gpg: Total number processed: 0

使用命令gpg -a --export 67170598AF249743 | sudo apt-key add -，我得到以下结果

gpg: WARNING: nothing exported
gpg: no valid OpenPGP data found.

但我仍然收到与上述相同的 GPG 错误，谁能建议我一个解决方案？

Answer 1

似乎keyserver.ubuntu.com 缺少packages.osrfoundation.org 的gpg 密钥

使用 wget 从下面下载 Gazebo.key ..

wget  http://packages.osrfoundation.org/gazebo.key

并导入它

sudo apt-key add gazebo.key

然后试试

sudo apt-get update && sudo apt-get upgrade