Error occured while move or copying

What steps will reproduce the problem?
1.DMSF-> Click any of the documents details
2.Click the move/copy icon 
3.Will get internal error

What is the expected output? What do you see instead?
I need some options to move or copy the document. Instead 

or_version DESC, updated_at DESC LIMIT 1
  CACHE (0.0ms)   SELECT * FROM `projects` WHERE (projects.status=1)
  CACHE (0.0ms)   SELECT * FROM `projects` WHERE (projects.status=1)
  DmsfFolder Load (0.4ms)   SELECT * FROM `dmsf_folders` WHERE (dmsf_folder_id is NULL and project_id = 49) ORDER BY title ASC
  DmsfFolder Load (0.2ms)   SELECT * FROM `dmsf_folders` WHERE (`dmsf_folders`.dmsf_folder_id = 4) ORDER BY title ASC
  DmsfFolder Load (0.2ms)   SELECT * FROM `dmsf_folders` WHERE (`dmsf_folders`.dmsf_folder_id = 5) ORDER BY title ASC
  ThemeChangerUserSetting Load (0.2ms)   SELECT * FROM `theme_changer_user_settings` WHERE (user_id = 1) LIMIT 1

ActionView::TemplateError (undefined local variable or method 
`robot_exclusion_tag' for #<ActionView::Base:0x2aaaad369520>) on line #42 of 
vendor/plugins/redmine_dmsf/app/views/dmsf_files_copy/new.html.erb:
39:
40: <% content_for :header_tags do %>
41:     <%= stylesheet_link_tag "dmsf", :plugin => "redmine_dmsf" %>
42:     <%= robot_exclusion_tag %>
43:     <%= javascript_include_tag "jquery-1.6.1.min.js", :plugin => 
"redmine_dmsf" %>
44:     <script type="text/javascript">
45:             jQuery.noConflict();

    vendor/plugins/redmine_dmsf/app/views/dmsf_files_copy/new.html.erb:42
    app/helpers/application_helper.rb:856:in `content_for'
    vendor/plugins/redmine_dmsf/app/views/dmsf_files_copy/new.html.erb:40
    vendor/plugins/redmine_dmsf/app/controllers/dmsf_files_copy_controller.rb:41:in `new'

Rendering /iqs/Redmine/redmine-1.1/public/500.html (500 Internal Server Error) 

What version of the DMSF and Redmine are you using? On what browser and
operating
system?
DMSF    1.1.1
Redmine 1.1
OS- Linux 5.4
Firefox

Please provide any additional information below.

or_version DESC, updated_at DESC LIMIT 1
  CACHE (0.0ms)   SELECT * FROM `projects` WHERE (projects.status=1)
  CACHE (0.0ms)   SELECT * FROM `projects` WHERE (projects.status=1)
  DmsfFolder Load (0.4ms)   SELECT * FROM `dmsf_folders` WHERE (dmsf_folder_id is NULL and project_id = 49) ORDER BY title ASC
  DmsfFolder Load (0.2ms)   SELECT * FROM `dmsf_folders` WHERE (`dmsf_folders`.dmsf_folder_id = 4) ORDER BY title ASC
  DmsfFolder Load (0.2ms)   SELECT * FROM `dmsf_folders` WHERE (`dmsf_folders`.dmsf_folder_id = 5) ORDER BY title ASC
  ThemeChangerUserSetting Load (0.2ms)   SELECT * FROM `theme_changer_user_settings` WHERE (user_id = 1) LIMIT 1

ActionView::TemplateError (undefined local variable or method 
`robot_exclusion_tag' for #<ActionView::Base:0x2aaaad369520>) on line #42 of 
vendor/plugins/redmine_dmsf/app/views/dmsf_files_copy/new.html.erb:
39:
40: <% content_for :header_tags do %>
41:     <%= stylesheet_link_tag "dmsf", :plugin => "redmine_dmsf" %>
42:     <%= robot_exclusion_tag %>
43:     <%= javascript_include_tag "jquery-1.6.1.min.js", :plugin => 
"redmine_dmsf" %>
44:     <script type="text/javascript">
45:             jQuery.noConflict();

    vendor/plugins/redmine_dmsf/app/views/dmsf_files_copy/new.html.erb:42
    app/helpers/application_helper.rb:856:in `content_for'
    vendor/plugins/redmine_dmsf/app/views/dmsf_files_copy/new.html.erb:40
    vendor/plugins/redmine_dmsf/app/controllers/dmsf_files_copy_controller.rb:41:in `new'

Rendering /iqs/Redmine/redmine-1.1/public/500.html (500 Internal Server Error)
Original issue reported on code.google.com by kishore....@gmail.com on 17 Nov 2011 at 9:06
Merged into: #177
naidu / redmine-dmsf

Error occured while move or copying #183
