New installation and migration

Hi everybody

My first post so be patient.
I’d installed a full functional rubyrails system on ubuntu 7.10
A collegue of mine has given me a copy of his application and I’m
trying to migrate it to my new server.
Nothing to do.


dependencies.rb:376:in new_constants_in': You have a nil object when you didn't expect it! (NoMethodError) You might have expected an instance of Array. The error occurred while evaluating nil.empty? from /usr/lib/ruby/ gems/1.8/gems/activesupport-1.4.4/lib/active_support/dependencies.rb: 202:inload_file’
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/
active_support/dependencies.rb:94:in require_or_load' from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/ active_support/dependencies.rb:248:inload_missing_constant’
from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/
active_support/dependencies.rb:452:in const_missing' from /var/www/sito/vendor/plugins/rel_1.2.0/lib/engines/ rails_extensions/rails_initializer.rb:23 from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb: 27:ingem_original_require’
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:
27:in require' from /usr/lib/ruby/gems/1.8/gems/activesupport-1.4.4/lib/ active_support/dependencies.rb:495:inrequire’
… 24 levels…
from /usr/lib/ruby/gems/1.8/gems/rails-1.2.6/lib/commands/
from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:
27:in gem_original_require' from /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb: 27:inrequire’
from server:3

Is there a way to determine wich plugin and other needs are different
beetwen the old setup and my new server?
If yes is it sufficcient to sutisfy the need and copy all the jerarchy
to have a new system functional?

Thnaks in advance

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