10.11 下用 homebrew 安装 mpv 失败了怎么解决

[tyhunter]

Titan:~ hunter$ brew install mpv
Error: No available formula for mpv
Searching formulae...
Searching taps...
Caskroom/cask/mpv
Titan:~ hunter$ brew install Caskroom/cask/mpv
==> brew cask install Caskroom/cask/mpv
==> Caveats
Cask mpv installs files under "/usr/local". The presence of such
files can cause warnings when running "brew doctor", which is considered
to be a bug in homebrew-cask.

==> Downloading https://github.com/mpv-player/mpv/releases/download/v0.14.0/mpv_
Already downloaded: /Library/Caches/Homebrew/mpv-0.14.0.tar.bz2
==> Verifying checksum for Cask mpv
==> Symlinking App 'mpv.app' to '/Users/hunter/Applications/mpv.app'
==> Symlinking Binary 'mpv' to '/usr/local/bin/mpv'
==> ln: /usr/local/bin/mpv: Permission denied
Error: Command failed to execute!

==> Failed command:
["/bin/ln", "-hfs", "--", "#<Pathname:/opt/homebrew-cask/Caskroom/mpv/0.14.0/mpv.app/Contents/MacOS/mpv>", "#<Pathname:/usr/local/bin/mpv>"]

==> Output of failed command:


==> Exit status of failed command:
#<Process::Status: pid 67908 exit 1>
Warning: You are using OS X 10.11.
We do not provide support for this pre-release version.
You may encounter build failures or other breakage.

[znoodl]

homebrew-cask 上个月有重大更新，最好 brew doctor 看下，如果有问题就 brew uninstall --force brew-cask; brew update

然后再试下

[187j3x1]

Warning: You are using OS X 10.11.
We do not provide support for this pre-release version.

赌 5 毛 brew 半年没做过更新 其他楼上说了

[Valyrian]

brew update

[tyhunter]

@znoodl
@187j3x1
@Valyrian
好像真是 brew 没更新的关系...平时不常用， 10.11 也是从 10.10 升上来的

[Alesso]

如果是权限问题可以看看这个 http://www.jianshu.com/p/769f1cd249e7
如果搞不清楚还是先 `brew doctor` 吧，应该会提示你 `brew update` 的。
从回复判断，楼主应该是不常用 CLI 的，可能你还需要：
安装 mpv 用 `brew install mpv --with-bundle`，等安装完以后就可以 `brew linkapps mpv`，这样就可以在应用程序里生成 .app 文件，以便直接点击文件播放视频了。
顺便， mpv.conf 里可以加上 `fs-black-out-screens` 这么一行，以避免全屏时掉帧的问题。

[Pastsong]

关于 homebrew 的用法，至少一周就要 brew update 一次， homebrew 是不会自己更新源的

[shliujing]

@Pastsong +1