NoMethodError（对于LinkedIn：Module，未定义的方法“新”）

Question

I'm just currently trying to follow tutorials to learn ruby and rails etc. So I apologise in advance for the newbie'ness of this question.

I've had a bunch of code dropped on me with instructions to 'get that up and see what it does'.

Its a rails app that was up at one time and now needs to be resurrected. And I've been hammering at it for a week now.

So, I got the rails app extracted into a folder.. and used rvm to set myself up with

• ruby 1.9.3p448 (2013-06-27 revision 41675) [i686-linux]
• Rails 3.0.7
• On ubuntu 12.04

Cos I was told the app had been a 'rails 3' app.

I had to do a good bit of changing things in the Gemfile as gems were no longer available etc. Spent ages wrestling with Rake errors until I finally forced it back to 0.8.7 and got a db:migrate to work.

And now I can get 'rails server' to startup WEBrick. However when I point a browser at http://localhost:3000/ I get the output below.

They thing I'm at a loss with is the "NoMethodError (undefined method `new' for LinkedIn:Module)" as I've grepped and I don't actually have a LinkeIn module in the code. I just have a Gemfile entry for the

gem "linkedin", "~> 0.4.1"

And I just can't find out where in the code this error is getting thrown from. If someone could help me identify what file/line that the error is emanating from .. or tell me that its actually coming from the LinkedIn gem than it would be a great help.

Its justkilling me that I can't find out where the code is so that I can go fix it. The Application Trace on the webpage is blank. To me it looks like its happening before the code gets to the controller specified for the root route in the routes.rb.

So, please, any help at all.. how to turn on tracing, where to go to find out whats going on at all..

Thanks

Vida

*Console output on browse to root*

/home/ubuntu/.rvm/gems/ruby-1.9.3-p448/gems/rake-0.8.7/lib/rake/alt_system.rb:32: Use RbConfig instead of obsolete and deprecated Config.
=> Booting WEBrick
=> Rails 3.0.7 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2013-07-30 07:29:01] INFO  WEBrick 1.3.1
[2013-07-30 07:29:01] INFO  ruby 1.9.3 (2013-06-27) [i686-linux]
[2013-07-30 07:29:01] INFO  WEBrick::HTTPServer#start: pid=13793 port=3000


Started GET "/" for 127.0.0.1 at 2013-07-30 07:29:53 -0600

NoMethodError (undefined method `new' for LinkedIn:Module):


Rendered /home/ubuntu/.rvm/gems/ruby-1.9.3-p448/gems/actionpack-3.0.7/lib/action_dispatch/middleware/templates/rescues/_trace.erb (1.1ms)
Rendered /home/ubuntu/.rvm/gems/ruby-1.9.3-p448/gems/actionpack-3.0.7/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (4.3ms)
Rendered /home/ubuntu/.rvm/gems/ruby-1.9.3-p448/gems/actionpack-3.0.7/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (9.0ms)

Answer 1

Just in case anyone else happens across this... Problem was solved with the help of an experienced Rails programmer. What he did was start from fresh and use rvm to straighten out some issues with my installation.

So, it wasn't a problem in code, per say, but an issue around installing rails etc.

HTH someone.