Ubuntu出现An error occurred during the signature verification.

Ubuntu sudo apt-get update 出现：

An error occurred during the signature verification. The repository is not updated and the previous index files will be used.

解决办法：
 

sudo apt-get clean 


cd /var/lib/apt 


sudo mv lists lists.old 


sudo mkdir -p lists/partial 


sudo apt-get clean 


sudo apt-get update

出现新的签名错误可以参照：

https://blog.csdn.net/dragongiri/article/details/96423662