# Problem in installing Community

**URL:** <https://www.ruby-forum.com/t/problem-in-installing-community/188296>\
**Category:** Rails\
**Created:** [May 9, 2010, 6:42pm UTC](https://www.ruby-forum.com/t/problem-in-installing-community/188296 "2010-05-09T18:42:49Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![zengr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/z/ecae2f/32.png) [@zengr](https://www.ruby-forum.com/u/zengr)\
**Post date:** [May 9, 2010, 6:42pm UTC](https://www.ruby-forum.com/t/problem-in-installing-community/188296/1 "2010-05-09T18:42:49Z")

</div>

Hi,

I am new to ROR and trying to deploy the community\_engine module to a  
clean ROR project.

When I follow all the instructions here:

> <https://github.com/bborn/communityengine/blob/master/README.markdown>

And run " ./generate plugin\_migration"

I get this error:

vendor/plugins/community\_engine/config/initializers/sessions\_middleware.rb:1:  
undefined method `middleware' for ActionController::Dispatcher:Class (NoMethodError) from /vendor/rails/activesupport/lib/active_support/dependencies.rb:142:in `load\_without\_new\_constant\_marking’  
from  
/vendor/rails/activesupport/lib/active\_support/dependencies.rb:142:in  
`load_without_desert' from /vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new\_constants\_in’  
from  
/vendor/rails/activesupport/lib/active\_support/dependencies.rb:142:in  
`load_without_desert' from /var/lib/gems/1.8/gems/desert-0.5.3/lib/desert/ruby/object.rb:18:in `load’  
from  
/var/lib/gems/1.8/gems/desert-0.5.3/lib/desert/ruby/object.rb:32:in  
`__each_matching_file' from /var/lib/gems/1.8/gems/desert-0.5.3/lib/desert/ruby/object.rb:17:in `load’  
from /vendor/plugins/community\_engine/config/boot.rb:5  
from /home/utkarsh/Desktop/SJSU MS-SE/My  
Dropbox/Dropbox/my-personal-documents/tech/ROR/knowledgebin/vendor/plugins/community\_engine/config/boot.rb:4:in  
`each' from /vendor/plugins/community_engine/config/boot.rb:4 from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem\_original\_require’  
from /usr/lib/ruby/1.8/rubygems/custom\_require.rb:31:in `require' from /vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require\_without\_desert’  
from  
/vendor/rails/activesupport/lib/active\_support/dependencies.rb:521:in  
`new_constants_in' from /vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require\_without\_desert’  
from  
/var/lib/gems/1.8/gems/desert-0.5.3/lib/desert/ruby/object.rb:8:in  
`require' from /var/lib/gems/1.8/gems/desert-0.5.3/lib/desert/ruby/object.rb:32:in `\_\_each\_matching\_file’  
from  
/var/lib/gems/1.8/gems/desert-0.5.3/lib/desert/ruby/object.rb:7:in  
`require' from /config/environment.rb:22 from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem\_original\_require’  
from /usr/lib/ruby/1.8/rubygems/custom\_require.rb:31:in `require' from /vendor/rails/railties/lib/commands/generate.rb:1 from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem\_original\_require’  
from /usr/lib/ruby/1.8/rubygems/custom\_require.rb:31:in `require’  
from ./generate:3

My installed gems are:

\*\*\* LOCAL GEMS \*\*\*

actionmailer (2.3.5, 2.3.4, 2.3.3)  
actionpack (2.3.5, 2.3.4, 2.3.3)  
activerecord (2.3.5, 2.3.4, 2.3.3)  
activeresource (2.3.5, 2.3.4, 2.3.3)  
activesupport (2.3.5, 2.3.4, 2.3.3)  
appengine-apis (0.0.15)  
appengine-jruby-jars (0.0.7)  
appengine-rack (0.0.8)  
appengine-sdk (1.3.3.1)  
appengine-tools (0.0.12)  
authlogic (2.1.3)  
aws-s3 (0.6.2)  
builder (2.1.2)  
bundler08 (0.8.5)  
calendar\_date\_select (1.16.1)  
desert (0.5.3, 0.5.2)  
google-appengine (0.0.12)  
haml (2.0.5)  
hpricot (0.8.2)  
htmlentities (4.2.1)  
icalendar (1.1.4)  
jruby-rack (0.9.7)  
mime-types (1.16)  
progressbar (0.9.0)  
rack (1.1.0, 1.0.1)  
rails (2.3.4)  
rake (0.8.7, 0.8.3)  
ri\_cal (0.8.7)  
rmagick (2.13.1)  
rubyzip (0.9.4)  
searchlogic (2.4.19)  
xml-simple (1.0.12)

and ruby -v: ruby 1.8.7 (2010-01-10 patchlevel 249) [i486-linux]

Any ideas?

Similar problem is posted here:  
[http://groups.google.com/group/communityengine/browse\_thread/thread/4f566f99284ee1db/f17bce1804973f14](http://groups.google.com/group/communityengine/browse_thread/thread/4f566f99284ee1db/f17bce1804973f14)

But by upgrading Rails to 2.3.3 worked for him, I have downgraded from  
2.3.5 to 2.3.4 and also tried on 2.3.3. But I get the same error.