Redactor integration problem

Hi Guys,

I am trying to implement Redactor into my app. It is for the Member
model
which has a blog. I followed the instructions located here:
https://github.com/SammyLin/redactor-rails

But still getting this error - Any thoughts on why this happens? Do You
have experience with it? Do You know any other similar editor with image
upload? (I already use ckEditor in ActiveAdmin, and it would be nice for
the Members too but I don’t know how I can create a new config to work
with
the member model):

Started POST “/redactor_rails/pictures?
authenticity_token=62nv7KKJET5NpaoPmm3rs%2BiYds3qPMgfTJDP2L8hF10%3D” for
127.0.0.1 at 2013-08-03 18:28:43 +0200
Processing by RedactorRails::PicturesController#create as HTML
Parameters:
{“file”=>#<ActionDispatch::Http::UploadedFile:0x007ff1c5d5bab0
@original_filename=“100_2995.JPG”, @content_type=“image/jpeg”,
@headers=“Content-Disposition: form-data; name=“file”;
filename=“100_2995.JPG”\r\nContent-Type: image/jpeg\r\n”,
@tempfile=#Tempfile:/var/folders/90/wjyhxjfs3gz3xkhsk8z_sz2w0000gn/T/RackMultipart20130803-4405-1cl023b>,
“authenticity_token”=>“62nv7KKJET5NpaoPmm3rs+iYds3qPMgfTJDP2L8hF10=”}
Member Load (0.3ms) SELECT “members”.* FROM “members” WHERE
“members”.“id” = 10 LIMIT 1
Completed 500 Internal Server Error in 2442ms

NameError (uninitialized constant RedactorRails::Asset::User):
activerecord (3.2.13) lib/active_record/inheritance.rb:111:in
compute_type' activerecord (3.2.13) lib/active_record/reflection.rb:172:inklass’
activerecord (3.2.13)
lib/active_record/associations/association.rb:202:in
raise_on_type_mismatch' activerecord (3.2.13) lib/active_record/associations/belongs_to_association.rb:6:inreplace’
activerecord (3.2.13)
lib/active_record/associations/singular_association.rb:17:in writer' activerecord (3.2.13) lib/active_record/associations/builder/association.rb:51:inblock in
define_writers’

/usr/local/rvm/gems/ruby-2.0.0-p0/bundler/gems/redactor-rails-d0c1fc21420e/app/controller/redactor_rails/pictures_controller.rb:16:in
create' actionpack (3.2.13) lib/action_controller/metal/implicit_render.rb:4:insend_action’
actionpack (3.2.13) lib/abstract_controller/base.rb:167:in
process_action' actionpack (3.2.13) lib/action_controller/metal/rendering.rb:10:inprocess_action’
actionpack (3.2.13) lib/abstract_controller/callbacks.rb:18:in block in process_action' activesupport (3.2.13) lib/active_support/callbacks.rb:425:in_run__512611831908309020__process_action__292749284689078618__callbacks’
activesupport (3.2.13) lib/active_support/callbacks.rb:405:in
__run_callback' activesupport (3.2.13) lib/active_support/callbacks.rb:385:in_run_process_action_callbacks’
activesupport (3.2.13) lib/active_support/callbacks.rb:81:in
run_callbacks' actionpack (3.2.13) lib/abstract_controller/callbacks.rb:17:inprocess_action’
actionpack (3.2.13) lib/action_controller/metal/rescue.rb:29:in
process_action' actionpack (3.2.13) lib/action_controller/metal/instrumentation.rb:30:inblock in process_action’
activesupport (3.2.13) lib/active_support/notifications.rb:123:in
block in instrument' activesupport (3.2.13) lib/active_support/notifications/instrumenter.rb:20:ininstrument’
activesupport (3.2.13) lib/active_support/notifications.rb:123:in
instrument' actionpack (3.2.13) lib/action_controller/metal/instrumentation.rb:29:inprocess_action’
actionpack (3.2.13)
lib/action_controller/metal/params_wrapper.rb:207:in
process_action' activerecord (3.2.13) lib/active_record/railties/controller_runtime.rb:18:inprocess_action’
actionpack (3.2.13) lib/abstract_controller/base.rb:121:in process' actionpack (3.2.13) lib/abstract_controller/rendering.rb:45:inprocess’
actionpack (3.2.13) lib/action_controller/metal.rb:203:in dispatch' actionpack (3.2.13) lib/action_controller/metal/rack_delegation.rb:14:indispatch’
actionpack (3.2.13) lib/action_controller/metal.rb:246:in block in action' actionpack (3.2.13) lib/action_dispatch/routing/route_set.rb:73:incall’
actionpack (3.2.13) lib/action_dispatch/routing/route_set.rb:73:in
dispatch' actionpack (3.2.13) lib/action_dispatch/routing/route_set.rb:36:incall’
journey (1.0.4) lib/journey/router.rb:68:in block in call' journey (1.0.4) lib/journey/router.rb:56:ineach’
journey (1.0.4) lib/journey/router.rb:56:in call' actionpack (3.2.13) lib/action_dispatch/routing/route_set.rb:612:incall’
railties (3.2.13) lib/rails/engine.rb:479:in call' railties (3.2.13) lib/rails/railtie/configurable.rb:30:inmethod_missing’
journey (1.0.4) lib/journey/router.rb:68:in block in call' journey (1.0.4) lib/journey/router.rb:56:ineach’
journey (1.0.4) lib/journey/router.rb:56:in call' actionpack (3.2.13) lib/action_dispatch/routing/route_set.rb:612:incall’
warden (1.2.3) lib/warden/manager.rb:35:in block in call' warden (1.2.3) lib/warden/manager.rb:34:incatch’
warden (1.2.3) lib/warden/manager.rb:34:in call' actionpack (3.2.13) lib/action_dispatch/middleware/best_standards_support.rb:17:incall’
rack (1.4.5) lib/rack/etag.rb:23:in call' rack (1.4.5) lib/rack/conditionalget.rb:35:incall’
actionpack (3.2.13) lib/action_dispatch/middleware/head.rb:14:in
call' actionpack (3.2.13) lib/action_dispatch/middleware/params_parser.rb:21:incall’
actionpack (3.2.13) lib/action_dispatch/middleware/flash.rb:242:in
call' rack (1.4.5) lib/rack/session/abstract/id.rb:210:incontext’
rack (1.4.5) lib/rack/session/abstract/id.rb:205:in call' actionpack (3.2.13) lib/action_dispatch/middleware/cookies.rb:341:incall’
activerecord (3.2.13) lib/active_record/query_cache.rb:64:in call' activerecord (3.2.13) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:incall’
actionpack (3.2.13) lib/action_dispatch/middleware/callbacks.rb:28:in
block in call' activesupport (3.2.13) lib/active_support/callbacks.rb:405:in_run__1647929714818531281__call__880499119694952234__callbacks’
activesupport (3.2.13) lib/active_support/callbacks.rb:405:in
__run_callback' activesupport (3.2.13) lib/active_support/callbacks.rb:385:in_run_call_callbacks’
activesupport (3.2.13) lib/active_support/callbacks.rb:81:in
run_callbacks' actionpack (3.2.13) lib/action_dispatch/middleware/callbacks.rb:27:incall’
actionpack (3.2.13) lib/action_dispatch/middleware/reloader.rb:65:in
call' actionpack (3.2.13) lib/action_dispatch/middleware/remote_ip.rb:31:incall’
actionpack (3.2.13)
lib/action_dispatch/middleware/debug_exceptions.rb:16:in call' actionpack (3.2.13) lib/action_dispatch/middleware/show_exceptions.rb:56:incall’
railties (3.2.13) lib/rails/rack/logger.rb:32:in call_app' railties (3.2.13) lib/rails/rack/logger.rb:16:inblock in call’
activesupport (3.2.13) lib/active_support/tagged_logging.rb:22:in
tagged' railties (3.2.13) lib/rails/rack/logger.rb:16:incall’
actionpack (3.2.13) lib/action_dispatch/middleware/request_id.rb:22:in
call' rack (1.4.5) lib/rack/methodoverride.rb:21:incall’
rack (1.4.5) lib/rack/runtime.rb:17:in call' activesupport (3.2.13) lib/active_support/cache/strategy/local_cache.rb:72:incall’
rack (1.4.5) lib/rack/lock.rb:15:in call' actionpack (3.2.13) lib/action_dispatch/middleware/static.rb:63:incall’
railties (3.2.13) lib/rails/engine.rb:479:in call' railties (3.2.13) lib/rails/application.rb:223:incall’
rack (1.4.5) lib/rack/content_length.rb:14:in call' railties (3.2.13) lib/rails/rack/log_tailer.rb:17:incall’
rack (1.4.5) lib/rack/handler/webrick.rb:59:in `service’

/usr/local/rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/webrick/httpserver.rb:138:in
`service’

/usr/local/rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/webrick/httpserver.rb:94:in
`run’

/usr/local/rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/webrick/server.rb:295:in
`block in start_thread’

Rendered
/usr/local/rvm/gems/ruby-2.0.0-p0/gems/actionpack-3.2.13/lib/action_dispatch/middleware/templates/rescues/_trace.erb
(2.1ms)
Rendered
/usr/local/rvm/gems/ruby-2.0.0-p0/gems/actionpack-3.2.13/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb
(1.6ms)
Rendered
/usr/local/rvm/gems/ruby-2.0.0-p0/gems/actionpack-3.2.13/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb
within rescues/layout (12.9ms)

Best Wishes,
Matt