# Upgrading to rails 2.0

**URL:** <https://www.ruby-forum.com/t/upgrading-to-rails-2-0/132982>\
**Category:** Rails\
**Created:** [March 26, 2008, 1:10pm UTC](https://www.ruby-forum.com/t/upgrading-to-rails-2-0/132982 "2008-03-26T13:10:44Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![jakattack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/b2d939/32.png) [@jakattack](https://www.ruby-forum.com/u/jakattack)\
**Post date:** [March 26, 2008, 1:10pm UTC](https://www.ruby-forum.com/t/upgrading-to-rails-2-0/132982/1 "2008-03-26T13:10:44Z")

</div>

Hi,

I’m trying to upgrade my application from rails 1.2.6 to rails 2.0.  
After upgrading I tried to launch webrick and I got the following  
error. Does anyone have any thoughts on how to proceed? I can’t find  
anything on the web.

```
Janak

```

c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:263:in `load_missing_constant': uninitialized constant ActionView::TemplateFinder (NameError) from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:453:in`const\_missing’  
from c:/ruby/lib/ruby/gems/1.8/gems/actionmailer-2.0.2/lib/  
action\_mailer/base.rb:399:in `template_root=' from c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/initializer.rb: 283:in`initialize\_framework\_views’  
from c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/initializer.rb:  
97:in `process' from c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/initializer.rb: 49:in`send’  
from c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/initializer.rb:  
49:in `run' from C:/Documents and Settings/Janak/My Documents/Aptana Studio/ kahoots/config/environment.rb:13 from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`gem\_original\_require’  
… 12 levels…  
from c:/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`require' from ./script/server:3 from -e:2:in`load’  
from -e:2

---

<div class="post-metadata">

**Author:** ![jakattack](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/b2d939/32.png) [@jakattack](https://www.ruby-forum.com/u/jakattack)\
**Post date:** [March 26, 2008, 1:27pm UTC](https://www.ruby-forum.com/t/upgrading-to-rails-2-0/132982/2 "2008-03-26T13:27:15Z")

</div>

What do you have here:

from C:/Documents and Settings/Janak/My Documents/Aptana Studio/  
kahoots/config/environment.rb:13