Having Trouble Updating to Latest RubyGems on the Mac? Try This.

I wanted to install the official release of Merb 1.0 but found I needed to have RubyGems 1.3 installed to do so, no big deal right? Well, on my MacBook Pro running 10.5, I found running the usual command to update RubyGems:

$ sudo gem update --system

Gave me the following:

Updating RubyGems
Updating rubygems-update
Successfully installed rubygems-update-1.3.0
ERROR: While executing gem ... (NameError)
undefined local variable or method `remote_gemspecs' for #
$ gem --version
1.2.0

Thinking I had typed something wrong because updating RubyGems always works, I tried again only to see this:

$ sudo gem update --system
Updating RubyGems
Nothing to update
$ gem --version
1.2.0

A bit of searching around the web I found a blog with a post matching my exact problem with a solution that worked perfectly from Wincent.com. I then proceeded to install Merb and now have Merb 1.0 installed.

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Posted on November 08, 2008

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#1
kewin
03.24.2009 @ 6:32 AM

D:\Ruby\ruby\bin>gem update --system

Updating RubyGems

Nothing to update

D:\Ruby\ruby\bin>gem update

Updating installed gems

Updating ruby-opengl

Building native extensions. This could take a while...

ERROR: While executing gem ... (Gem::Installer::ExtensionBuildError)

ERROR: Failed to build gem native extension.

rake RUBYARCHDIR=D:/Ruby/ruby/lib/ruby/gems/1.8/gems/ruby-opengl-0.60.1/lib RUBY

LIBDIR=D:/Ruby/ruby/lib/ruby/gems/1.8/gems/ruby-opengl-0.60.1/lib

ruby mkrf_conf.rb

(in D:/Ruby/ruby/lib/ruby/gems/1.8/gems/ruby-opengl-0.60.1)

call rake --nosearch

cl -nologo -MD -Zi -O2b2xg- -G6 -DWIN32 -DRUBY_VERSION=186 -ID:/Ruby/ruby/inc

lude -ID:/Ruby/ruby/lib/ruby/1.8/i386-mswin32 -ID:/Ruby/ruby/lib/ruby/site_ruby/

1.8 -I. -c gl-1.0-1.1.c

(in D:/Ruby/ruby/lib/ruby/gems/1.8/gems/ruby-opengl-0.60.1/ext/gl)

gl-1.0-1.1.c

../common/common.h(40) : fatal error C1083: Cannot open include file: 'GL/glut.h

': No such file or directory

rake aborted!

Command failed with status (2): [cl -nologo -MD -Zi -O2b2xg- -G6 -DWIN32 ...]

(See full trace by running task with --trace)

rake aborted!

Command failed with status (1): [call rake --nosearch...]

(See full trace by running task with --trace)

Gem files will remain installed in D:/Ruby/ruby/lib/ruby/gems/1.8/gems/ruby-open

gl-0.60.1 for inspection.

Results logged to D:/Ruby/ruby/lib/ruby/gems/1.8/gems/ruby-opengl-0.60.1/gem_mak

e.out

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