将Ubuntu的源修改为国内源的之后,执行
sudo apt-get update
出现问题:
GPG error: The following signatures couldn‘t be verified because the public key is not available
解决方法:
-
sudo gpg --keyserver keyserver.ubuntu.com --recv 5523BAEEB01FA116 //(这个公钥根据提示来写的)
-
-
sudo gpg --export --armor 5523BAEEB01FA116 | sudo apt-key add -
再执行下面命令,就不报错了。
sudo apt-get update
解决GPG error: The following signatures couldn't be verified because the public key is not available