All problems are solved with Rake gem 0.9.2.. I followed these steps:

   - I installed gem install rake -v=0.9.2 (I had the 0.9.1 gem)
   - removed the 0.9.1 with gem uninstall rake -v=0.9.1
   - updated with bundle update
   -

   then the db:migrate showed a warning, WARNING: Global access to Rake DSL
   methods is deprecated. Please....

   It was solved by adding the following to the Rake file.

   module ::YourApplicationName
     class Application

         include Rake::DSL
     end
   end



If the above code not working means u can specify the rake gem version in
your gem file
and run command, bundle install from command prompt.

may be it will solve the issue .



On 4 August 2011 13:42, SW Engineer <[email protected]> wrote:

> When trying to migrate a database to `Heroku`, I get the following
> (Provided that I'm using `gem 'sqlite3', '1.3.3'`:
>
>
>    $ heroku rake db:migrate
>    (in /app)
>    rake aborted!
>    uninitialized constant Rake::DSL
>    /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2482:in `const_missing'
>    /app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/tasklib.rb:8:in
> `<class:Ta
>    skLib>'
>    /app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/tasklib.rb:6:in
> `<module:R
>    ake>'
>    /app/.bundle/gems/ruby/1.9.1/gems/rake-0.9.2/lib/rake/tasklib.rb:3:in
> `<top (req
>    uired)>'
>    /app/.bundle/gems/ruby/1.9.1/gems/rdoc-3.9.1/lib/rdoc/task.rb:37:in
> `require'
>    /app/.bundle/gems/ruby/1.9.1/gems/rdoc-3.9.1/lib/rdoc/task.rb:37:in
> `<top (requi
>    red)>'
>
>  
> /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/tasks/documentation.r
>    ake:2:in `require'
>
>  
> /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/tasks/documentation.r
>    ake:2:in `<top (required)>'
>
>  /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/tasks.rb:15:in
> `load'
>
>
>  /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/tasks.rb:15:in
> `block
>     in <top (required)>'
>    /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/tasks.rb:6:in
> `each'
>    /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/tasks.rb:6:in
> `<top (
>    required)>'
>
>  
> /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/application.rb:215:in
>     `require'
>
>  
> /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/application.rb:215:in
>     `initialize_tasks'
>
>  
> /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/application.rb:139:in
>     `load_tasks'
>
>  
> /app/.bundle/gems/ruby/1.9.1/gems/railties-3.0.9/lib/rails/application.rb:77:in
>    `method_missing'
>    /app/Rakefile:7:in `<top (required)>'
>    /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2373:in `load'
>    /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2373:in `raw_load_rakefile'
>    /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2007:in `block in
> load_rakefile'
>    /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2058:in
> `standard_exception_handling'
>    /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:2006:in `load_rakefile'
>    /usr/ruby1.9.2/lib/ruby/1.9.1/rake.rb:1991:in `run'
>    /usr/ruby1.9.2/bin/rake:31:in `<main>'
>
> How can I solve this issue?
>
> Thanks.
>
> --
> Posted via http://www.ruby-forum.com/.
>
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>
>


-- 

       G SubbaRao

       Cell:08970668850

       E-Mail:[email protected]

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