gem install bundler
ERROR: Loading command: install (LoadError)
cannot load such file -- zlib
ERROR: While executing gem ... (NameError)
uninitialized constant Gem::Commands::InstallCommand
解决办法:
一、卸载 1.9.3
$ rvm remove 1.9.3
二、安装zlib
$ rvm pkg install zlib
二、重新安装ruby 1.9.3
$ rvm reinstall 1.9.3