Brew 安装问题总结

1.Error: No formulae found in taps.


2.

bjhldeMacBook-Pro:~ bjhl$ brew cask install android-platform-tools


==> Downloading https://homebrew.bintray.com/bottles-portable-ruby/portable-ruby-2.6.3_2.yosemite.bottle.tar.gz
Already downloaded: /Users/bjhl/Library/Caches/Homebrew/portable-ruby-2.6.3_2.yosemite.bottle.tar.gz
Error: Checksum mismatch.
Expected: b065e5e3783954f3e65d8d3a6377ca51649bfcfa21b356b0dd70490f74c6bd86
  Actual: 1f729d9a4d9a7f14db921119280db0b15c5e7de85c6b97cd03bcf8d92b210428
 Archive: /Users/bjhl/Library/Caches/Homebrew/portable-ruby-2.6.3_2.yosemite.bottle.tar.gz
To retry an incomplete download, remove the file above.
Error: Failed to upgrade Homebrew Portable Ruby!

提示让我们删除这个文件

解决方法：rm -rf 指定删除文件（上述绿色标记）