Ruby Programming Language :: Rubygems problem on Mac OS X, please help


	Rubygems problem on Mac OS X, please help I finally got around to installing the latest Ruby version onto my Mac instead of using the one that comes with Mac OS X. I followed the instructions here: http://maczealots.com/tutorials/rubyosa/ Doing so, I installed readline 5.2, then built and installed Ruby 1.8.6, then installed rubygems 0.9.3. (Notice that in the link above it says to install readline 5.1 and rubygems 0.9.2, but I just downloaded the latest versions at the time. Everything seems to work fine, except rubygems. Whenever I issue a command, I get an error about an uninitialized constant. E.g.: > gem list -r * REMOTE GEMS * ERROR: While executing gem ... (NameError) uninitialized constant Gem::SourceInfoCache > gem install rubyosa ERROR: While executing gem ... (NameError) uninitialized constant Gem::RemoteInstaller Can somebody help me? Before you ask, yes I installed everything into /usr/local, and yes I made sure /usr/local/bin is first in my path. Doing "which ruby" and "ruby -v" both confirm that I am running ruby 1.8.6 from /usr/local/ bin. Are there any other environment variables I need to set to enable rubygems? Karl von Laudermann wrote: > Everything seems to work fine, except rubygems. Whenever I issue a > command, I get an error about an uninitialized constant. E.g.: >> gem list -r > * REMOTE GEMS * > ERROR: While executing gem ... (NameError) > uninitialized constant Gem::SourceInfoCache >> gem install rubyosa > ERROR: While executing gem ... (NameError) > uninitialized constant Gem::RemoteInstaller > Can somebody help me? Odd, RubyGems isn't finding some of its own libraries. If the files were missing, I would have expected an error on the require. Instead it looks as if the files are found, but the contents are not there. Interesting. Try the following commands in irb: require 'rubygems/remote_installer' # makes sure the file can be found Gem::RemoteInstaller # makes sure the class was loaded $:.find { \|d\| File.exist? File.join(d, 'rubygems/remote_installer.rb') } # Finds the location of the require file The last command should show the location of the file containing the RemoteInstaller class. Open the file and make sure it contains a proper definition for RemoteInstaller. -- -- Jim Weirich -- Posted via http://www.ruby-forum.com/. On May 28, 12:24 pm, Jim Weirich <j@weirichhouse.org> wrote: - Hide quoted text - > Odd, RubyGems isn't finding some of its own libraries. If the files > were missing, I would have expected an error on the require. Instead it > looks as if the files are found, but the contents are not there. > Interesting. > Try the following commands in irb: > require 'rubygems/remote_installer' # makes sure the file can be > found > Gem::RemoteInstaller # makes sure the class was loaded > $:.find { \|d\| File.exist? File.join(d, > 'rubygems/remote_installer.rb') } > # Finds the location of the > require file > The last command should show the location of the file containing the > RemoteInstaller class. Open the file and make sure it contains a proper > definition for RemoteInstaller. Thank you! That was the problem: for some reason, the file remote_installer.rb was present, but empty (zero bytes in size). But there was also a file called remote_installer.1.rb that had the correct contents. Likewise, source_info_cache.rb was empty, and its contents were in source_info_cache.1.rb. I have no idea why this happened, and all the other files seem fine. Fixing this solved the problem. Thanks again!