我需要在 Ubuntu 14.04 中安装 Nodejs
为此，我参考以下 URL 在终端中执行了以下命令：
https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-an-ubuntu-14-04-server
sudo apt-get install nodejs
安装过程的结果是，我收到了以下过程的输出：
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
mysql-server : Depends: mysql-server-5.5 but it is not going to be installed
nodejs : Depends: libc-ares2 (>= 1.8.0) but it is not going to be installed
Depends: libv8-3.14.5 but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
根据上述输出，我执行了以下命令：
sudo apt-get -f install
但执行上述命令后出现以下错误：
E: Sub-process /usr/bin/dpkg returned an error code (1)
请提出适当的解决方案。