I just installed ruby 1.8.6 stable version on windows xp pc. When I try
to install gems by gem install gemname…it says ‘command not
recognized’. When I download a gem manually and put in the bin folder
and then use gem install it will work. However, it is only working for
some gems. Other error messages that I am getting is that the gem is of
invalid format. Do you know why I can’t run update gems outside of the
bin folder or why some will not install?