RVM & Home brew issue

Question

I recently opened an old project within my terminal and recieved the following message

 ruby-2.0.0-p598 is not installed.
 To install do: 'rvm install ruby-2.0.0-p598'

I then ran rvm install rvm install ruby-2.0.0-p598 and recieved this message

 Searching for binary rubies, this might take some time.
 No binary rubies available for: osx/10.10/x86_64/ruby-2.0.0-p598.
 Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
 Checking requirements for osx.
 /usr/local/bin/brew: /usr/local/Library/brew.rb:/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad interpreter: No such file or directory
 /usr/local/bin/brew: line 21: /usr/local/Library/brew.rb: Undefined error: 0
 ERROR: '/bin' is not writable - it is required for Homebrew, try 'brew doctor' to fix it!
 Requirements installation failed with status: 1.

I then ran brew doctor and recieved this message

 /usr/local/bin/brew: /usr/local/Library/brew.rb: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad interpreter: No such file or directory
 /usr/local/bin/brew: line 21: /usr/local/Library/brew.rb: Undefined error: 0

What is going on here and how can I fix this?

Answer 1

sudo chown -R用户名：group / usr / local再次尝试brew医生。