Ubuntu出现公共秘钥的解决办法

         W:Anerror occurred during the signature verification. The repository is not updatedand the previous index files will be us public key is not available: No PUBKEY1397     BC53640DB551

 

参考网站：https://askubuntu.com/questions/943146/apt-update-error-an-error-occurred-during-the-signature-verification-chrome

解决办法：sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 1397BC53640db551 

sudo apt-get update