“apt-get update” 命令有问题！

Question

我无法更新我的 ubuntu 存储库列表，我尝试“ sudo apt-get update”，但出现此错误：

Get:15 http://dl.google.com stable Release.gpg [1,540 B]                                                                                                     
Hit http://dl.google.com stable Release
Get:16 http://dl.google.com stable Release [1,540 B]                                                                                                         
Ign http://dl.google.com stable Release           
E: GPG error: http://dl.google.com stable Release: The following signatures were invalid: NODATA 1 NODATA 2

有人能帮我解决这个问题吗？

Answer 1

尝试sudo apt-get clean然后sudo apt-get upgrade。