Problems with Upgrading Rails App (2.1.2 -> 2.3.4)

Rails
1

Hi,
Basically its about an “uninitialized constant
ActionController::Session::PStore (NameError)”

I had a look at:
http://wiki.rubyonrails.org/getting-started/upgrading?s[]=upgrade

I did the following commands:

  1. Updated my environment.rb
    RAILS_GEM_VERSION = ‘2.3.4’
  2. Installed the newer rails
    sudo gem install rails -v 2.3.4
  3. Executed rake rails:update
  4. I checked: Ruby on Rails 2.2 Release Notes — Ruby on Rails Guides
  5. and Ruby on Rails 2.3 Release Notes — Ruby on Rails Guides

The deprecated code sections in 4 and 5 dont seem to be root of my
problem.

I have no clue, whats wrong. Any ideas?

Kind Regards,
Alexander

2

I forgot some steps

Alexander S. wrote:
I did the following commands:

  1. Updated my environment.rb
    RAILS_GEM_VERSION = ‘2.3.4’
  2. Installed the newer rails
    sudo gem install rails -v 2.3.4
  3. Executed rake rails:update
    4.1) ruby script/server # in app-dir leaded to error message
    4.2) rake db:migrate # in app-dir leaded to error message

A) I checked: Ruby on Rails 2.2 Release Notes — Ruby on Rails Guides
B) and Ruby on Rails 2.3 Release Notes — Ruby on Rails Guides

Kind Regards,
Alexander