我试图在rails上安装Ruby,所以首先我安装了RVM rvm install 1.9.2
。之后,安装这个gem install rails
。它显示了这个错误错误:执行gem时(Errno :: EISDIR)gem install rails
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions into the /var/lib/gems/1.8 directory.
然后我用这个sudo chmod 0777 /var/lib/gems/1.8/
后,当我安装,它显示这个错误:
ERROR: While executing gem ... (Errno::EACCES)
Permission denied - /var/lib/gems/1.8/cache/railties-3.2.2.gem
然后我跑sudo chmod 0777 /var/lib/gems/1.8/cache/railties-3.2.2.gem
之后,我安装gem install rails
。再次显示这个错误
ERROR: While executing gem ... (Errno::EISDIR)
Is a directory - /var/lib/gems/1.8/cache/railties-3.2.2.gem