I ran into this too.

'sudo gem install rdoc' should clear things up for you.


On Thursday, July 19, 2012 11:06:35 PM UTC-5, 刘亚丹 wrote:
>
> Hi:
>
>          When I start the dashboard server,but all ways failed . Someone 
> can help me ?
>
>  
>
>          #sudo -u puppet-dashboard ./script/server -e production
>
>          Missing these required gems:
>
>        rack  >= 0
>
>  
>
> You're running:
>
>        ruby 1.8.7.174 at /usr/bin/ruby1.8
>
>        rubygems 1.8.24 at /usr/lib/ruby/gems/1.8, /root/.gem/ruby/1.8
>
>  
>
> Run `rake gems:install` to install the missing gems.
>
>  
>
>          
>
>          And now,I EXECUTE “rake gems:install”,
>
>          # rake gems:install
>
> rake aborted!
>
> no such file to load -- rdoc/task
>
> /data/puppet-dashboard/Rakefile:9
>
> (See full trace by running task with --trace)
>
>  
>
> root@puppet:/data/puppet-dashboard# more /data/puppet-dashboard/Rakefile
>
> # Add your own tasks in files placed in lib/tasks ending in .rake,
>
> # for example lib/tasks/capistrano.rake, and they will automatically be 
> available to Rake.
>
>  
>
> require(File.join(File.dirname(__FILE__), 'config', 'boot'))
>
> require 'thread'
>
>  
>
> require 'rake'
>
> require 'rake/testtask'
>
> require 'rdoc/task'
>
>  
>
> require 'tasks/rails'
>
>  
>
>   
>
> How can I do?
>
>  
>
>  
>
>  
>

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