Try using Sudo Also, Xcode could be out of date re: this problem ( http://railsforum.com/viewtopic.php?id=22116)
On Wed, Dec 28, 2011 at 11:22 AM, Krishna P. <[email protected]> wrote: > Hello all, > I am stuck and I need your help. I tried to install rails and got the > mkmf error. I installed ruby1.8-dev and I am still getting the same > error. > > Rails install error: > -------------------- > root@localhost:~# gem install rails > Building native extensions. This could take a while... > ERROR: Error installing rails: > ERROR: Failed to build gem native extension. > > /usr/bin/ruby1.9.1 extconf.rb > <internal:lib/rubygems/custom_require>:29:in `require': no such file to > load -- mkmf (LoadError) > from <internal:lib/rubygems/custom_require>:29:in `require' > from extconf.rb:1:in `<main>' > > > Gem files will remain installed in /var/lib/gems/1.9.1/gems/json-1.6.4 > for inspection. > Results logged to > /var/lib/gems/1.9.1/gems/json-1.6.4/ext/json/ext/parser/gem_make.out > > > > Proof of ruby1.8-dev installation > ---------------------------------- > root@localhost:~# apt-get install ruby1.8-dev > Reading package lists... Done > Building dependency tree > Reading state information... Done > ruby1.8-dev is already the newest version. > The following packages were automatically installed and are no longer > required: > libactionmailer-ruby1.8 linux-headers-2.6.35-25-server > libcmdparse2-ruby1.8 > libtext-format-ruby1.8 libtmail-ruby1.8 libmocha-ruby1.8 > libactivesupport-ruby1.8 libredcloth-ruby1.8 libjs-prototype > libmemcache-client-ruby1.8 linux-headers-2.6.35-22-server > libactionpack-ruby1.8 libactiveresource-ruby1.8 libsqlite3-ruby1.8 > liblog4r-ruby1.8 libbuilder-ruby1.8 libncurses-ruby1.8 > linux-headers-2.6.35-23-server librack-ruby libtzinfo-ruby1.8 > linux-headers-2.6.35-22 linux-headers-2.6.35-23 > linux-headers-2.6.35-24 > linux-headers-2.6.35-25 linux-headers-2.6.35-27 libdaemons-ruby1.8 > linux-headers-2.6.35-27-server libactiverecord-ruby1.8 librack-ruby1.8 > wwwconfig-common rubygems1.8 linux-headers-2.6.35-24-server > libjs-jquery > libi18n-ruby1.8 javascript-common > Use 'apt-get autoremove' to remove them. > 0 upgraded, 0 newly installed, 0 to remove and 113 not upgraded. > > -- > Posted via http://www.ruby-forum.com/. > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > > -- *Francesca Krihely | **Community Marketing Manager | **10gen* *@francescapasha <http://twitter.com/francescapasha> | **@mongoDB<http://twitter.com/mongoDB> * *Skype: FrancescaMongoDB* * * *Mongo Boulder is happening February 1st! Join us<http://www.10gen.com/events/mongo-boulder> or propose a talk <http://www.10gen.com/talk-proposal>* *We're hiring! Come build great things with us 10gen.com/careers* -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.

