[lnc12]

I want to start creating a ROR based application on my Mac with Lion.
But I get following error doing bundle install:

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/ui.rb:46: uninitialized constant Gem::SilentUI (NameError)
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/cli.rb:17:in `initialize'
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/vendor/thor.rb:246:in `new'
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/vendor/thor.rb:246:in `dispatch'
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/lib/bundler/vendor/thor/base.rb:389:in `start'
	from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/gems/1.8/gems/bundler-1.0.0/bin/bundle:13

I have tried to search on google and can see I am not the only person with these kinds of problems, but I haven't be able to find a solution can anyone help ?

[lnc12]

I am also getting these errors when I try to update my ruby:

56347d1b:scripts tools$ rvm install 1.9.3-p0
Fetching yaml-0.1.4.tar.gz to /Users/tools/.rvm/archives
Extracting yaml-0.1.4.tar.gz to /Users/tools/.rvm/src
Configuring yaml in /Users/tools/.rvm/src/yaml-0.1.4.
Compiling yaml in /Users/tools/.rvm/src/yaml-0.1.4.
Installing yaml to /Users/tools/.rvm/usr
Installing Ruby from source to: /Users/tools/.rvm/rubies/ruby-1.9.3-p0, this may take a while depending on your cpu(s)...

ruby-1.9.3-p0 - #fetching 
ruby-1.9.3-p0 - #extracted to /Users/tools/.rvm/src/ruby-1.9.3-p0 (already extracted)
ruby-1.9.3-p0 - #configuring 
Error running ' ./configure --prefix=/Users/tools/.rvm/rubies/ruby-1.9.3-p0 --enable-shared --disable-install-doc --with-libyaml --with-opt-dir=/Users/tools/.rvm/usr ', please read /Users/tools/.rvm/log/ruby-1.9.3-p0/configure.log
There has been an error while running configure. Halting the installation.
56347d1b:scripts tools$ 

[xclite]

So what's in /Users/tools/.rvm/log/ruby-1.9.3-p0/configure.log? It tells you an explanation of the failed up date is there.

[lnc12]

Eeh just checked and the file don't exist WTF