Installing ri documentation for rubyzip-1.2.1...
Installing ri documentation for rouge-2.0.7...
unable to convert "\xD0" to UTF-8 in conversion from ASCII-8BIT to UTF-8 to Windows-31J for lib/rouge/demos/bsl, skipping

RDoc::Parser::Ruby failure around line 48 of
lib/rouge/formatters/html_table.rb

Before reporting this, could you check that the file you're documenting
has proper syntax:

  C:/tools/ruby193/bin/ruby.exe -c lib/rouge/formatters/html_table.rb

RDoc is not a full Ruby parser and will fail when fed invalid ruby programs.

The internal error was:

        (NoMethodError) undefined method `name' for #<RDoc::RubyToken::TkASSIGN:0x4f89ba0>

ERROR:  While generating documentation for rouge-2.0.7
... MESSAGE:   undefined method `name' for #<RDoc::RubyToken::TkASSIGN:0x4f89ba0>
... RDOC args: --ri --op C:/tools/ruby193/lib/ruby/gems/1.9.1/doc/rouge-2.0.7/ri lib --title rouge-2.0.7 Documentation --quiet