W: GPG error when sudo apt-get update: http://packages.osrfoundation.org/gazebo/ubuntu-stable xenial InRelease: The following signature could not be verified because there is no public key: NO_PUBKEY 67170598AF249743E: Repository "http://packages. osrfoundation.org/gazebo/ubuntu-stable xenial InRelease" has no digital signature. N: This source cannot be safely updated with, so this source is disabled by default.
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question
When running sudo apt-get update
W: GPG 错误：http://packages.osrfoundation.org/gazebo/ubuntu-stable xenial InRelease: 由于没有公钥，无法验证下列签名： NO_PUBKEY 67170598AF249743
E: 仓库 “http://packages.osrfoundation.org/gazebo/ubuntu-stable xenial InRelease” 没有数字签名。
N: 无法安全地用该源进行更新，所以默认禁用该源。
N: 参见 apt-secure(8) 手册以了解仓库创建和用户配置方面的细节。
Description above
solve
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 67170598AF249743
Notice
The key needs to be replaced with your own, mine is 67170598AF249743