when I am deploy my ror application on production then I am getting following error

in gem_original_require': no such file to load -- haml (MissingSourceFile)

but this gem already istalled.

I have also plugin for this path :-/home/techvant/rails_app/techease/vendor/plugins/haml/init.rb

this init file having following code : -

    begin
         require File.join(File.dirname(__FILE__), 'lib', 'haml') # F开发者_JAVA百科rom here
       rescue LoadError
         require 'haml' # From gem
    end

What do I need to resolve this error please help.

Following is the error trace.

/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require': no such file to load -- haml (MissingSourceFile) from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in require' from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in require' from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:521:in new_constants_in' from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in require' from /home/techvant/rails_app/techease/vendor/plugins/haml/init.rb:4:in evaluate_init_rb' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin.rb:146:in evaluate_init_rb' from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/core_ext/kernel/reporting.rb:11:in silence_warnings' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin.rb:142:in evaluate_init_rb' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin.rb:48:in load' from /home/techvant/rails_app/techease/config/../vendor/plugins/siteninja/engines/lib/engines/plugin.rb:77:in load' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin/loader.rb:38:in load_plugins' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin/loader.rb:37:in each' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/rails/plugin/loader.rb:37:in load_plugins' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:348:in load_plugins' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:163:in process' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in send' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/initializer.rb:113:in run' from /home/techvant/rails_app/techease/config/environment.rb:9 from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in require' from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in require' from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:521:in new_constants_in' from /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in require' from /usr/lib/ruby/gems/1.8/gems/rails-2.3.2/lib/commands/server.rb:84 from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require' from script/server:3

---

Since haml is a gem, I'd put it in environment.rb:

config.gem 'haml'

Then, unpack and add it to the repo:

rake gems:install
rake gems:unpack

Finally, remove the haml plugin references you've got.

---

you can try to unpack the gems so they are inside your rails app directory, this will eliminate your rails app from depending on local gems in your system. cheers!

---

Try:

gem update rails

...on the server, not your development machine

---

I had a great deal of trouble with this problem as well. Here are the steps I finally took to solve it.

First, install the gem.

put

config.gem 'haml' 

in your environment.rb file. I actually had to put it in my environments/development.rb and environments/production.rb (etc.) as it was complaining about not knowing the rails_env. Which is not optimal, but it worked. then run

rake gems:install

Then

mkdir -p /vendor/plugins/haml
cp vendor/gems/haml-2.2.0/init.rb /vendor/plugins/haml/init.rb

then restart your rails server.