bogon:bin macname$ brew install go ==> Downloading https://homebrew.bintray.com/bottles-portable-ruby/portable-ruby-2.3.7.leopard_64.bottle.tar.gz Already downloaded: /Users/macname/Library/Caches/Homebrew/portable-ruby-2.3.7.leopard_64.bottle.tar.gz Error: Checksum mismatch. Expected: 033ac518bb14abdb1bb47d968dc9e967c3ae2035499383a21a79b49d523065d1 Actual: e205b1fdae5e49c186f7c28a6e06bfe8ea3ee122548b96732b247fbf952cc577 Archive: /Users/macname/Library/Caches/Homebrew/portable-ruby-2.3.7.leopard_64.bottle.tar.gz To retry an incomplete download, remove the file above. Error: Failed to install vendor Ruby.
如提示，刪除重新下載文件就可以了
bogon:bin macname$ rm -rf /Users/macname/Library/Caches/Homebrew/portable-ruby-2.3.7.leopard_64.bottle.tar.gz