brew doctor error.

gistfile1.txt

 ->brew doctor

Error: no such file to load -- requirements/minimum_macos_requirement
Please report this bug:
    https://github.com/mxcl/homebrew/wiki/troubleshooting
/usr/local/Library/Homebrew/requirements.rb:4:in `require'
/usr/local/Library/Homebrew/requirements.rb:4
/usr/local/Library/Homebrew/dependency_collector.rb:4:in `require'
/usr/local/Library/Homebrew/dependency_collector.rb:4
/usr/local/Library/Homebrew/formula.rb:1:in `require'
/usr/local/Library/Homebrew/formula.rb:1
/usr/local/Library/Homebrew/cmd/missing.rb:1:in `require'
/usr/local/Library/Homebrew/cmd/missing.rb:1
/usr/local/Library/Homebrew/cmd/doctor.rb:1:in `require'
/usr/local/Library/Homebrew/cmd/doctor.rb:1
/usr/local/Library/brew.rb:51:in `require'
/usr/local/Library/brew.rb:51:in `require?'
/usr/local/Library/brew.rb:94


 ->brew --config
HOMEBREW_VERSION: 0.9.5
ORIGIN: https://github.com/mxcl/homebrew.git
HEAD: 41c71cb9f430c1d91a66d42e9e3b43748601810e
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
CPU: 8-core 64-bit sandybridge
OS X: 10.7.5-x86_64
Xcode: 4.3.2
CLT: 4.3.0.0.1.1249367152
LLVM-GCC: build 2336
Clang: 3.1 build 318
MacPorts/Fink: /opt/local/bin/port
X11: 2.6.3 => /opt/X11
System Ruby: 1.8.7-358
Perl: /opt/local/bin/perl => /opt/local/bin/perl5.12
Python: /Library/Frameworks/Python.framework/Versions/2.7/bin/python => /Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
Ruby: /Users/prezideveloper/.rvm/rubies/ruby-1.9.3-p448/bin/ruby


 ->brew install -v foo 2>&1
Error: no such file to load -- requirements/minimum_macos_requirement
Please report this bug:
    https://github.com/mxcl/homebrew/wiki/troubleshooting
/usr/local/Library/Homebrew/requirements.rb:4:in `require'
/usr/local/Library/Homebrew/requirements.rb:4
/usr/local/Library/Homebrew/dependency_collector.rb:4:in `require'
/usr/local/Library/Homebrew/dependency_collector.rb:4
/usr/local/Library/Homebrew/formula.rb:1:in `require'
/usr/local/Library/Homebrew/formula.rb:1
/usr/local/Library/Homebrew/formula_installer.rb:5:in `require'
/usr/local/Library/Homebrew/formula_installer.rb:5
/usr/local/Library/Homebrew/cmd/install.rb:1:in `require'
/usr/local/Library/Homebrew/cmd/install.rb:1
/usr/local/Library/brew.rb:51:in `require'
/usr/local/Library/brew.rb:51:in `require?'
/usr/local/Library/brew.rb:94