标签：ror res ubuntu signature apt launch public wing error
报错信息：
W: GPG error: http://ppa.launchpad.net trusty InRelease: The following signatures couldn‘t be verified because the public key is not available: NO_PUBKEY 8CF63AD3F06FC659
解决：
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8CF63AD3F06FC659
标签：ror res ubuntu signature apt launch public wing error
原文地址：https://www.cnblogs.com/sea-stream/p/11027576.html
