以 E: 开头的错误消息到底是什么意思？我认为这与 Ubuntu-on-Windows 上的文件结构有关，但到底是什么？
The following package was automatically installed and is no longer required:
os-prober
Use 'apt-get autoremove' to remove it.
The following extra packages will be installed:
libxslt1.1
The following NEW packages will be installed:
libxslt1.1 xmlstarlet
0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 435 kB of archives.
After this operation, 1023 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu/ trusty/main libxslt1.1 amd64 1.1.28-2build1 [145 kB]
Get:2 …