当我尝试安装常规更新时,收到一条消息“无法解析包管理器”。
当我尝试使用 sudo apt-get update 从终端安装时,我收到以下信息:
Reading package lists... Done
W: There is no public key available for the following key IDs:
1397BC53640DB551
W: Ignoring Provides line with DepCompareOp for package libreoffice-l10n
W: Ignoring Provides line with DepCompareOp for package libreoffice-l10n
W: Ignoring Provides line with DepCompareOp for package libreoffice-l10n
W: Ignoring Provides line with DepCompareOp for package libreoffice-l10n
W: Ignoring Provides line with DepCompareOp for package libreoffice-l10n
W: Ignoring Provides line with DepCompareOp for package libreoffice-l1
我似乎无法再安装更新。问题是什么?我正在使用 Ubuntu 14.04.5 LTS。