Process stopped while executing "Gem Install Rails"

[Vinno Christmantara]

I'm using:
Windows 8 - 64 bit
Ruby version: ruby 1.9.3p545 (2014-02-24) [i386-mingw32]
Gem version: 1.8.28
DevKit file version: DevKit-tdm-32-4.5.2-20111229-1559-sfx.exe

I have an error and process stopped while executing command-line "gem install rails". The process stopped on this line:

ERROR:  While generating documentation for actionpack-4.1.1
... MESSAGE:   Invalid argument - ./ActionDispatch/Routing/Mapper/Scoping/:
... RDOC args: --ri --op C:/Ruby193/lib/ruby/gems/1.9.1/doc/actionpack-4.1.1/ri
lib --title actionpack-4.1.1 Documentation --quiet

But when I executing "rails -v" on command-line, it's output "Rails 4.1.1".

[Luis Lavena]

Hello and welcome,

Please see my responses inline.

Actually the "error" is an exception, triggered by Ruby documentation generator (RDoc) that is captured by RubyGems.

If you take a closer look to the output screenshot you attached, you will see above all the "Installing ri documentation" messages a success message "29 gems installed"

The issue with the documentation generator may be solved by updating RDoc (gem update rdoc).

I've seen a few reports of this issue and seems is something related to a specific piece of documentation in newer version of Rails.

To summarize: gems did install successfully. The error message is during documentation generation that might be solved by doing "gem update rdoc" first.

Hope that helps,

-- 

Luis Lavena
AREA 17
-
Perfection in design is achieved not when there is nothing more to add,
but rather when there is nothing more to take away.
Antoine de Saint-Exupéry

[Peter Fendrich]

Thank you Luis,

This helped me! 

--

Peter Fendrich

[isis lvx]

Thank you for this information. I'm a noob and this gem deal is driving me crazy. Very good and helpful post.