Uninitialized constant ApplicationController?


#1

Hello list,

I’m trying to start my Rails server after doing a long complex switch
from Postgres to MySQL, and I’m getting the following error:

=> Booting WEBrick…
/usr/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/dependencies.rb:200:in
const_missing': uninitialized constant ApplicationController (NameError) from script/../config/../vendor/plugins/user_engine/lib/user_engine.rb:74:inincluded’
from ./script/…/config/…/app/helpers/application_helper.rb:5
from
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in
require' from /usr/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/dependencies.rb:214:inrequire’
from
script/…/config/…/vendor/plugins/bundled_resource-0.9/init.rb:18:in
load_plugin' from /usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/initializer.rb:311:inload_plugin’
from
/usr/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/core_ext/kernel.rb:27:in
silence_warnings' from /usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/initializer.rb:311:inload_plugin’
… 10 levels…
from
/usr/lib/ruby/gems/1.8/gems/rails-1.0.0/lib/commands/server.rb:28

I’ve seen the ‘Uninitialized constant …’ message before, but it’s
always been because of a simple typo on my part, or a version mismatch
somewhere. I’m on Gentoo Linux, MySQL 5.0.18, Rails 1.0, current
versions of login_engine and user_engine, and that combination of
versions seems to be fine as far as I can tell.

Any suggestions where to look?

Thanks in advance

Dave M.


#2

Mr Mitchell:
On Jan 31, 2006, at 5:03 PM, David M. wrote:

=> Booting WEBrick…
/usr/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/
dependencies.rb:200:in
`const_missing’: uninitialized constant ApplicationController

Make sure the app/controllers/application.rb file exists.

Cheers,
Hasan D. removed_email_address@domain.invalid


#3

Thanks Hasan,

I checked that it is there, appears to be correct, but the problem is
still occurring.

Regards

Dave M.