Ubuntu18.04-The list of sources could not be read-fix it

1.遇上了The list of sources could not be read

N: Ignoring file 'google-chrome.list.6' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'google-chrome.list.3' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'google-chrome.list.10' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'google-chrome.list.7' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'google-chrome.list.8' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'google-chrome.list.5' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'google-chrome.list.1' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'google-chrome.list.4' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'google-chrome.list.2' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
N: Ignoring file 'google-chrome.list.9' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Malformed line 1 in source list /etc/apt/sources.list.d/google-chromw.list (type)
E: The list of sources could not be read.

2.解决方法-删除指定文件

 sudo rm /etc/apt/sources.list.d/google-chrome.list.*

注意：注意目录名和文件名