• 安装 mpv 终端播放器时遇到的问题

  brew install mpv
  

  在终端执行上述命令时遇到如下的提示：
  `sh
  Error: You must brew link lua before mpv can be installed
  localhost:~ yuanpinghua$ brew link lua
  Linking /usr/local/Cellar/lua/5.2.4_4…
  Error: Could not symlink bin/lua
  Target /usr/local/bin/lua
  already exists. You may want to remove it:
  rm ‘/usr/local/bin/lua’

To force the link and overwrite all conflicting files:
brew link –overwrite lua

To list all files that would be deleted:
brew link –overwrite –dry-run lua

解决方案：
```sh
sudo chown -R $(whoami) /usr/local/
brew link lua

执行上述命令会得到如下的提示：

Linking /usr/local/Cellar/lua/5.2.4_4... 55 symlinks created

再次执行:

brew install mpv 

这时就可以安装成功了