> On Jan 13, 2016, at 6:35 AM, vigneshwaran sivalingam <mynan...@gmail.com> > wrote: > > Hi colin, I tried what you said, It reinstalled the ruby then rails, but when > it downloaded the nokogiri1.6.7.0.gem, it showed error. But anyway rails was > installed. When i checked the version it shows > ~$ rails -v > Ignoring executable-hooks-1.3.2 because its extensions are not built. Try: > gem pristine executable-hooks --version 1.3.2 > Ignoring gem-wrappers-1.2.7 because its extensions are not built. Try: gem > pristine gem-wrappers --version 1.2.7 > Ignoring nokogiri-1.6.7.1 because its extensions are not built. Try: gem > pristine nokogiri --version 1.6.7.1 > Rails 4.2.5 > >
You may want to ask on the Nokogiri mailing list (nokogiri-t...@googlegroups.com) -- they are very good (and quick) about installation problems. Also, as Colin mentioned, rvm can make things very straightforward for you, not least because it does a ton of work to make sure your build environment is "sane" before it tries to install anything. If you can't build Nokogiri on a *nix machine, then there is very likely something funny with your compiler or system libraries, and rvm will tell you about that, down to which Debian package to use or which source to compile or which Homebrew package to install to get it working. Current and recent versions of Nokogiri bundle all the dependencies (time was you needed a working libxml of a certain vintage to make it go) but you still need a working compiler and link tool. Walter > > On Wednesday, January 13, 2016 at 1:54:40 AM UTC+5:30, Colin Law wrote: > On 12 January 2016 at 18:19, vigneshwaran sivalingam <myna...@gmail.com> > wrote: > > I was trying to install rails in ubuntu 14.04, but I am getting the > > following error. > > > > $gem install rails > > ERROR: Error installing rails: > > invalid gem: package is corrupt, exception while verifying: undefined > > method `size' for nil:NilClass (NoMethodError) in > > /home/usr/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/cache/nokogiri-1.6.7.1.gem > > > > I advise using rvm for installing ruby and rails. Others prefer rbenv. > sudo apt install curl > gpg --keyserver hkp://keys.gnupg.net --recv-keys > 409B6B1796C275462A1703113804BB82D39DC0E3 > \curl -sSL https://get.rvm.io | bash -s stable --rails > > The above should install the dependencies, rvm, ruby and rails. > See https://rvm.io > > Colin > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rubyonrails-talk+unsubscr...@googlegroups.com. > To post to this group, send email to rubyonrails-talk@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/rubyonrails-talk/be248cb1-c0a5-4e6c-a158-d57491835f1d%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-talk@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/DD4E65EF-58E3-434B-881C-533D9062E4D6%40wdstudio.com. For more options, visit https://groups.google.com/d/optout.
