Missing Required Packages? - Including libyaml

Question

I feel like my computer has some deep seated issues and is 100% against me installing rails/ruby/rvm and the rest on it. Or I'm just incompetent :)

I have installed rvm and ruby without issues. Here is my current setup (Log from Terminal):

Mac-mini:rubygems-1.8.25 Riley$ rvm -v

rvm 1.18.15 (master) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]

Mac-mini:rubygems-1.8.25 Riley$ ruby -v
ruby 1.9.3p392 (2013-02-22 revision 39386) [x86_64-darwin12.2.1]

However rails is a little different..

Mac-mini:rubygems-1.8.25 Riley$ rails -v
/Users/Jamie/.rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
Rails 3.2.12

So I try to install libyaml:

rvm pkg install libyaml
rvm reinstall all --force

But then I get this:

Missing required packages: autoconf, automake, libtool, pkg-config, apple-gcc42, libyaml, readline, libxml2, libxslt, libksba, openssl, curl-ca-bundle, sqlite.

as yellow output, despite it saying the install was successful. Okay, so then I check on rails again.

Mac-mini:rubygems-1.8.25 Riley$ rails -v
/Users/Jamie/.rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
Rails 3.2.12

Great. Its not working. So I try installing Homebrew to make my life a little easier.

ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)"

Installed. Cool.

Mac-mini:API Riley$ brew help
/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

Huh? And that happens on all brew actions, just to be clear.

Now, this is just what I've been facing in the last few hours. I've been trying to get this going for a few days now and I keep getting new errors. I've tried completely removing the Triple R (RVM, Rails and Ruby) and reinstalling and no amount of googling and debugging has seemed to work. I just don't know what to do anymore. I haven't made any progress. I've installed the Triple R on a few other computers, but this computer is just refusing to work with me.

Help to get the Triple R working on my computer would be GREATLY appreciated.

Thanks

Answer 1

The problem stemmed from my installation of Ruby. Apparently, as stated in this answer, "a non-LLVM version of GCC" is no longer included in the XCode command line tools.

Installing ruby with:

rvm install ruby --with-gcc=clang

Worked and I installed RVM, Ruby and Rails within about 10 minutes, despite it taking me a week of debugging and reinstalling otherwise.

Answer 2

try this answer Running RVM requirements, Skipping brew update - it's not the same question, but the solution + explanation are the same.