[jruby-user] Re: Error 'uninitialized constant Arel::Visitors::SQLite' with rails

After preliminary experimentation, rails 3 is off the table. I wrote 
this code about 5 years ago when Rails 2.3 was the latest and greatest, 
and the main reason to run it now is to move it somewhere else. I'm not 
a big rails fan, but I do like ruby as a language.

I would really prefer to keep Netbeans 7.4 and the Jruby that came with 
it. I'm using them for other (non-rails) projects.

After your previous helpful message I came to the conclusion that the 
jdbc adapter was the place to focus.

To be honest, I don't care what database. It was originally MySql but 
that's really too heavyweight. I use sqlite for other things so it's 
familiar, but H2 is OK too. Or Mssql. Whatever.

I tried to set a version for the jdbc gem. No, I don't have bundler and 
I don't have a gemfile. What I have is

    Rails::Initializer.run do |config|

So I loaded the gem and tried

  config.gem "activerecord-jdbcsqlite3-adapter", :version => '1.0.3'

Which produced the error:

>NoMethodError: undefined method `name' for "actionmailer":String
C:/Users/david/AppData/Roaming/NetBeans/7.4/jruby/lib/ruby/gems/shared/gems/rails-2.3.8/lib/rails/gem_dependency.rb:275:in 
`=='

Not obvious how the two are connected, but I guess that's what the 
debugger is for.

Your experiment (a) reproduce the problem and (b) suggested this is the 
right fix. I have a few things to try now at least. Thanks for the help.

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