fedena安装错误（ruby on rails）

Question

I am new to ruby and rails.I am trying to install fedena project.But on executing rdoc db:create i am getting error like failed to allocate memoryls/generators/rspec_controller/templates/helper_spec.rb . I have already 4gb of ram in my system and in that 3.5 gb is free.How much memory is required for this ?Is it package intsallation bug? I am using following rail ruby versions

Rail: Rails 2.3.5
Ruby:ruby 2.1.0
rake, version 10.1.1
rdoc-4.1.0

--debug

Parsing sources...
unable to convert "\xA7" from ASCII-8BIT to UTF-8 for public/javascripts/tiny_mce   /plugins/spellchecker/editor_plugin.js, skipping
unable to convert "\xA7" from ASCII-8BIT to UTF-8 for public/javascripts/tiny_mce/plugins/spellchecker/editor_plugin_src.js, skipping
failed to allocate memoryls/generators/rspec_controller/templates/helper_spec.rb
/usr/local/lib/ruby/2.1.0/rdoc/parser/ruby_tools.rb:25:in `push'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby_tools.rb:25:in `get_tk'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby_tools.rb:132:in `skip_tkspace'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby.rb:428:in `get_constant_with_optional_parens'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby.rb:1072:in `block in parse_extend_or_include'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby.rb:1069:in `loop'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby.rb:1069:in `parse_extend_or_include'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby.rb:1725:in `parse_statements'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby.rb:1871:in `parse_top_level_statements'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby.rb:1999:in `block in scan'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby.rb:1997:in `catch'
    /usr/local/lib/ruby/2.1.0/rdoc/parser/ruby.rb:1997:in `scan'
    /usr/local/lib/ruby/2.1.0/rdoc/rdoc.rb:367:in `parse_file'
    /usr/local/lib/ruby/2.1.0/rdoc/rdoc.rb:420:in `block in parse_files'
    /usr/local/lib/ruby/2.1.0/rdoc/rdoc.rb:418:in `map'
    /usr/local/lib/ruby/2.1.0/rdoc/rdoc.rb:418:in `parse_files'
    /usr/local/lib/ruby/2.1.0/rdoc/rdoc.rb:488:in `document'
    /usr/local/lib/ruby/gems/2.1.0/gems/rdoc-4.1.0/bin/rdoc:20:in `<top (required)>'
    /usr/local/bin/rdoc:23:in `load'
    /usr/local/bin/rdoc:23:in `<main>'

Answer 1

I think you are using the wrong version of Ruby as of what they have specified in the documentation. Use rails as

Rails 2.3.5(Note: Version should be 2.3.5),

ruby as

ruby-1.8.7-p302

In windows they are using this particular version of ruby