小编Ami*_*tel的帖子

我的系统有poppler-utils v0.24.5. 从官方网站我发现最新版本是0.40.0.

我尝试使用以下命令更新它

sudo apt-get install --only-upgrade poppler-utils

但它不会升级并显示以下消息。

poppler-utils is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 14 not upgraded.

有人可以帮我升级到最新版本吗？

以下是步骤

1. sudo apt-get install software-properties-common

2. sudo apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0xF1656F24C74CD1D8

3. $ sudo add-apt-repository 'deb [arch=amd64,i386] http://mirror.fibergrid.in/mariadbrepo/10.1/ubuntu xenial main'

4. sudo apt-get update
5. sudo apt-get install mariadb-server

错误

sudo: /etc/sudoers.d is world writable
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved …