问题
More specifically, I was using homebrew to install MySQL, and I got this error:
Error: SHA1 mismatch
Expected: f218ed64ce6e7a5d3670acdd6a18e5ed95421d1f
Got: 3a57f6f44186e0dba34ef8b8fb4a9047e9e5d8a3
Archive: /Users/rdp/Library/Caches/Homebrew/cmake-2.8.7.bottle.tar.gz
(To retry an incomplete download, remove the file above.)
回答1:
Everything worked after I ran brew update.
回答2:
Incase the brew update fails, try the following
cd `brew --prefix`
git remote add origin https://github.com/Homebrew/homebrew
git fetch origin
git reset --hard origin/master
回答3:
I was having the same problem as Steve S regarding epstool dependency on Octave and found this link:
https://github.com/Homebrew/homebrew-science/issues/1110
Check out iml's post about 10 down from the top (his second post). As he explained, I downloaded it from the fedoraproject.org site and then moved it into the /Library/Caches/Homebrew/ directory.
Cheers,
-Maashu
回答4:
In my case the file downloaded from https://downloads.sourceforge.net/ctags/ctags-5.8.tar.gz is actually a html file. I downloaded the real file and place it at /Library/Caches/Homebrew/ctags-5.8.tar.gz. Then I run brew install ctags, everything works.
来源：https://stackoverflow.com/questions/9857629/sha1-error-when-using-brew-install