Unable to install software packages using Home Brew I am unable to install any software packages using homebrew. I get the following error when I try to install any softwares. 

    Rahuls-iMac:local rahuljeevanandam$ brew install mysql
    ==&gt; Installing mysql dependency: cmake
    ==&gt; Downloading https://downloads.sf.net/project/machomebrew/Bottles/cmake-2.8.1
    Already downloaded: /Library/Caches/Homebrew/cmake-2.8.10.1.lion.bottle.tar.gz
    Error: SHA1 mismatch
    Expected: 31856bbd662ca47c325761fc7040e43f9a635c64
    Actual: 4b2ea1d2785009c32d85d1d0e0c7dc4cd68322b7
    Archive: /Library/Caches/Homebrew/cmake-2.8.10.1.lion.bottle.tar.gz
    (To retry an incomplete download, remove the file above.)

    Rahuls-iMac:local rahuljeevanandam$ brew install wget
    ==&gt; Downloading http://ftpmirror.gnu.org/wget/wget-1.14.tar.gz
    ######################################################################## 100.0%
    Error: SHA1 mismatch
    Expected: c487bce740b3a1847a35fb29b5c6700c46f639b8
    Actual: ca98a1bf07f850bc23731fd15d869d1b73ef8c84
    Archive: /Library/Caches/Homebrew/wget-1.14.tar.gz
    (To retry an incomplete download, remove the file above.)
Type

brew cleanup


follow by

brew update


then try again!