From: Ryan Bigg Date: 2009-11-27T08:06:09+09:00 Subject: [ruby-core:26921] [Bug #1157] missing zlib.rb? Issue #1157 has been updated by Ryan Bigg. I too have encountered this issue with a completely bare-bones installation of Ruby 1.9.1-p243. To fix it, I followed Lutz steps about downloading and compiling zlib and then I cd'd into the /ext/zlib directory, ran ruby extconf.rb && make && sudo make install then "sudo gem install rails" worked. I feel that going through the whole Ruby ./configure && make && sudo make install process is excessive. ---------------------------------------- http://redmine.ruby-lang.org/issues/show/1157 ---------------------------------------- http://redmine.ruby-lang.org