"src/rbae.c:13:27: fatal error: Carbon/Carbon.h: No such file or directory" while installing rb-appscript (0.6.1) on ubuntu

While running bundle install, got following error:
Installing rb-appscript (0.6.1) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /home/ritesh/.rvm/rubies/ruby-1.9.3-p0/bin/ruby extconf.rb
extconf.rb:44: Use RbConfig instead of obsolete and deprecated Config.
create /home/ritesh/.rvm/gems/ruby-1.9.3-p0@koodrails/gems/rb-appscript-0.6.1/src/osx_ruby.h ...
create /home/ritesh/.rvm/gems/ruby-1.9.3-p0@koodrails/gems/rb-appscript-0.6.1/src/osx_intern.h ...
creating Makefile

make
Makefile:226: warning: overriding commands for target `/home/ritesh/.rvm/gems/ruby-1.9.3-p0@koodrails/gems/rb-appscript-0.6.1/lib'
Makefile:224: warning: ignoring old commands for target `/home/ritesh/.rvm/gems/ruby-1.9.3-p0@koodrails/gems/rb-appscript-0.6.1/lib'
compiling src/rbae.c
src/rbae.c:13:27: fatal error: Carbon/Carbon.h: No such file or directory
compilation terminated.
make: *** [rbae.o] Error 1


Gem files will remain installed in /home/ritesh/.rvm/gems/ruby-1.9.3-p0@koodrails/gems/rb-appscript-0.6.1 for inspection.
Results logged to /home/ritesh/.rvm/gems/ruby-1.9.3-p0@koodrails/gems/rb-appscript-0.6.1/./gem_make.out
An error occured while installing rb-appscript (0.6.1), and Bundler cannot continue.
Make sure that `gem install rb-appscript -v '0.6.1'` succeeds before bundling.



Yet looking for solution to fix the issue, if someone can help.

Getting error "can't activate sqlite3 (~> 1.3.5), already activated sqlite3-1.3.4" when upgrading to Rails 3.2

Upgradation from Rails 3.1 to Rails 3.2 done successfully. When starting server, getting error :

Exiting
/home/ritesh/.rvm/gems/ruby-1.9.3-p0@global/gems/bundler-1.0.21/lib/bundler/rubygems_integration.rb:153:in `block in replace_gem': Please install the sqlite3 adapter: `gem install activerecord-sqlite3-adapter` (can't activate sqlite3 (~> 1.3.5), already activated sqlite3-1.3.4. Make sure all dependencies are added to Gemfile.) (LoadError)
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.2.0/lib/active_record/connection_adapters/sqlite3_adapter.rb:3:in `<top (required)>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:251:in `require'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:251:in `block in require'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:234:in `block in load_dependency'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:639:in `new_constants_in'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:234:in `load_dependency'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:251:in `require'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.2.0/lib/active_record/connection_adapters/abstract/connection_specification.rb:48:in `resolve_hash_connection'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.2.0/lib/active_record/connection_adapters/abstract/connection_specification.rb:39:in `resolve_string_connection'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.2.0/lib/active_record/connection_adapters/abstract/connection_specification.rb:23:in `spec'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.2.0/lib/active_record/connection_adapters/abstract/connection_specification.rb:127:in `establish_connection'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.2.0/lib/active_record/railtie.rb:76:in `block (2 levels) in <class:Railtie>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/lazy_load_hooks.rb:42:in `each'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activerecord-3.2.0/lib/active_record/base.rb:709:in `<top (required)>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/omniauth-identity-1.0.0/lib/omniauth/identity/models/active_record.rb:6:in `<module:Models>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/omniauth-identity-1.0.0/lib/omniauth/identity/models/active_record.rb:5:in `<module:Identity>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/omniauth-identity-1.0.0/lib/omniauth/identity/models/active_record.rb:4:in `<module:OmniAuth>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/omniauth-identity-1.0.0/lib/omniauth/identity/models/active_record.rb:3:in `<top (required)>'
from /home/ritesh/projects/projects/crowd/app/models/crowd/credential.rb:1:in `<top (required)>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:469:in `load'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:469:in `block in load_file'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:639:in `new_constants_in'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:468:in `load_file'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:353:in `require_or_load'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:502:in `load_missing_constant'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:192:in `block in const_missing'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:190:in `each'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:190:in `const_missing'
from /home/ritesh/projects/projects/crowd/config/initializers/omniauth.rb:4:in `block in <top (required)>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/omniauth-1.0.0/lib/omniauth/builder.rb:7:in `initialize'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/actionpack-3.2.0/lib/action_dispatch/middleware/stack.rb:43:in `new'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/actionpack-3.2.0/lib/action_dispatch/middleware/stack.rb:43:in `build'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/actionpack-3.2.0/lib/action_dispatch/middleware/stack.rb:112:in `block in build'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/actionpack-3.2.0/lib/action_dispatch/middleware/stack.rb:112:in `each'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/actionpack-3.2.0/lib/action_dispatch/middleware/stack.rb:112:in `inject'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/actionpack-3.2.0/lib/action_dispatch/middleware/stack.rb:112:in `build'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/engine.rb:470:in `app'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/application/finisher.rb:32:in `block in <module:Finisher>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:30:in `instance_exec'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:30:in `run'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:55:in `block in run_initializers'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:54:in `each'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:54:in `run_initializers'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/application.rb:136:in `initialize!'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /home/ritesh/projects/projects/crowd/spec/dummy/config/environment.rb:5:in `<top (required)>'
from /home/ritesh/projects/projects/crowd/spec/dummy/config.ru:4:in `require'
from /home/ritesh/projects/projects/crowd/spec/dummy/config.ru:4:in `block in <main>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize'
from /home/ritesh/projects/projects/crowd/spec/dummy/config.ru:1:in `new'
from /home/ritesh/projects/projects/crowd/spec/dummy/config.ru:1:in `<main>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:40:in `eval'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:40:in `parse_file'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/server.rb:200:in `app'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands/server.rb:46:in `app'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/server.rb:252:in `start'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands/server.rb:70:in `start'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands.rb:55:in `block in <top (required)>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands.rb:50:in `tap'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands.rb:50:in `<top (required)>'
from /home/ritesh/projects/projects/crowd/spec/dummy/script/rails:6:in `require'
from /home/ritesh/projects/projects/crowd/spec/dummy/script/rails:6:in `<top (required)>'
from script/rails:6:in `load'
from script/rails:6:in `<main>'

To fix the error:

Change the sqlite version in .gemspec from

s.add_development_dependency "sqlite3"

to

s.add_development_dependency "sqlite3" , "~> 1.3.5"

and run 'bundle install'

Getting error 'undefined method `before_dispatch' for class `Rails::Rack::Logger' (NameError) '

Upgradation from Rails 3.1 to Rails 3.2 done successfully. When starting rails server getting following error:

/home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/core_ext/module/aliasing.rb:31:in `alias_method': undefined method `before_dispatch' for class `Rails::Rack::Logger' (NameError)
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/core_ext/module/aliasing.rb:31:in `alias_method_chain'
from /home/ritesh/projects/projects/crowd/spec/dummy/config/initializers/quite_assets.rb:6:in `block in <top (required)>'
from /home/ritesh/projects/projects/crowd/spec/dummy/config/initializers/quite_assets.rb:2:in `class_eval'
from /home/ritesh/projects/projects/crowd/spec/dummy/config/initializers/quite_assets.rb:2:in `<top (required)>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:245:in `load'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:245:in `block in load'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:236:in `load_dependency'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.2.0/lib/active_support/dependencies.rb:245:in `load'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/engine.rb:588:in `block (2 levels) in <class:Engine>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/engine.rb:587:in `each'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/engine.rb:587:in `block in <class:Engine>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:30:in `instance_exec'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:30:in `run'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:55:in `block in run_initializers'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:54:in `each'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/initializable.rb:54:in `run_initializers'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/application.rb:136:in `initialize!'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /home/ritesh/projects/projects/crowd/spec/dummy/config/environment.rb:5:in `<top (required)>'
from /home/ritesh/projects/projects/crowd/spec/dummy/config.ru:4:in `require'
from /home/ritesh/projects/projects/crowd/spec/dummy/config.ru:4:in `block in <main>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize'
from /home/ritesh/projects/projects/crowd/spec/dummy/config.ru:1:in `new'
from /home/ritesh/projects/projects/crowd/spec/dummy/config.ru:1:in `<main>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:40:in `eval'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/builder.rb:40:in `parse_file'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/server.rb:200:in `app'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands/server.rb:46:in `app'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.4.1/lib/rack/server.rb:252:in `start'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands/server.rb:70:in `start'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands.rb:55:in `block in <top (required)>'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands.rb:50:in `tap'
from /home/ritesh/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.2.0/lib/rails/commands.rb:50:in `<top (required)>'
from /home/ritesh/projects/projects/crowd/spec/dummy/script/rails:6:in `require'
from /home/ritesh/projects/projects/crowd/spec/dummy/script/rails:6:in `<top (required)>'
from script/rails:6:in `load'
from script/rails:6:in `<main>'

To fix the error, 

Place the following code in config/initializers/quiet_assets.rb

Rails.application.assets.logger = Logger.new('/dev/null')
Rails::Rack::Logger.class_eval do
  def call_with_quiet_assets(env)
    previous_level = Rails.logger.level
    Rails.logger.level = Logger::ERROR if env['PATH_INFO'].index("/assets/") == 0
    call_without_quiet_assets(env).tap do
      Rails.logger.level = previous_level
    end
  end
  alias_method_chain :call, :quiet_assets

 end

Getting error "File Error: data may have been lost" while using spreadsheet and exporting excel

I am using "Spreadsheet" gem with Rails 2.3.8. Microsoft Office 2007 is installed on my system.
I successfully fitted the code snippets in one of my controller.
I just wrote the code to create Worksheet and pushed one row record in it.
Number of records pushed in that row is around 330.
When I export the spreadsheet/excel, I got following error:

"File Error: data may have been lost"

Clicked on Ok and it created the excel file with the File Type "Microsoft Office Excel 97-2003 Worksheet" with one sheet having 1 row.
When closely analyzed the sheet, I found that Number of maximum columns that can be in that sheet is only 256 and as I was trying to have around 330 columns hence I was getting the error.

Getting error "Illegal octal digit"

While trying to execute below case method to display month, getting 'Illegal octal digit' for August and September month only:

def self.convert_month(month)
    case month
      when "Jan" :         01
      when "Feb" :        02
      when "Mar" :        03
      when "Apr" :        04
      when "May" :       05
      when "Jun" :         06
      when "Jul" :          07
      when "Aug" :       08
      when "Sep" :        09
      when "Oct" :        10
      when "Nov" :       11
      when "Dec" :        

  end

Solution

Ruby is interpreting numbers that have a leading 0 as being in octal (base 8). Thus the digits 8 and 9 are not valid. So,  I removed leading zero from Aug and Sep month and changed the method as:

when "Aug" :        8
when "Sep" :         9

Getting error "ArgumentError: wrong number of arguments (3 for 2)" for mysql2_adapter

In one of my application I am using Ruby 1.9.2, mysql2 gem, Rails 3.0.6.

While upgrading to Rails 3.1, getting following error throughout the application. When I ran command on console, then also getting same error:

ruby-1.9.2-p290 :003 > c = Cuisine.all
ArgumentError: wrong number of arguments (3 for 2)
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/mysql2-0.2.13/lib/active_record/connection_adapters/mysql2_adapter.rb:585:in `select'
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/database_statements.rb:18:in `select_all'
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract/query_cache.rb:63:in `select_all'
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/base.rb:470:in `find_by_sql'
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/relation.rb:111:in `to_a'
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/relation/finder_methods.rb:155:in `all'
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/activerecord-3.1.0/lib/active_record/base.rb:441:in `all'
    from (irb):3
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/railties-3.1.0/lib/rails/commands/console.rb:45:in `start'
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/railties-3.1.0/lib/rails/commands/console.rb:8:in `start'
    from /Users/ror/projects/restaurant/highline/ruby/1.9.1/gems/railties-3.1.0/lib/rails/commands.rb:40:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

Solution to fix the problem:

In Gemfile, replace 'mysql2' line with

       gem 'mysql2', '>= 0.3'

and install mysql2 greater than '0.3' version, in my case it is ' mysql2 (0.3.6) ' and it will work :)


NOTE: as of Rails 0.3.0, and ActiveRecord 3.1 - the ActiveRecord adapter has been pulled out of mysql2 gem and into ActiveRecord itself. If you need to use mysql2 with Rails versions < 3.1 make sure and specify gem "mysql2", "~> 0.2.7" in your Gemfile

And for Rails version 3.1 or above use  gem 'mysql2', '>= 0.3'

Getting error 'Could not update iceauthority file' in ubuntu

After logging in to an Ubuntu an ICEauthority error appeared. 

Solution
Press Ctrl-Alt-F1 to get a console. There, I hit Enter to get a login prompt. I logged in with my username and password, and this gave me a regular command prompt. After trying several failed commands, I found the following command on Ubuntuforums.org that helped me to login successfully.

Open a terminal and enter the following command:
sudo chown -R user:user /home/user/.*

Replace user with your username. For example, My username is 'ritesh' so I typed command:  
sudo chown -R ritesh:ritesh /home/ritesh/.*
After issuing the command, log out and log back in and Ubuntu will be back to normal GUI screen. This error came because of sftp. I installed sftp and assigned my username to use sftp that caused this error to occur. 
Related Links:
- http://ubuntuforums.org/showthread.php?t=1081730&highlight=ICEAuthority&page=2

searchd giving error "dyld: Library not loaded: libmysqlclient.18.dylib" on Mac

On Mac system, in one of my application using Thinking Sphinx. After installation while running searchd, it gives following errors:

$ searchd

dyld: Library not loaded: libmysqlclient.18.dylib

  Referenced from: /usr/local/bin/searchd

  Reason: image not found

Trace/BPT trap

-:sphinx-0.9.8 ror$ cd ..

-:Downloads ror$ l

-bash: l: command not found

Solution:
It's because unable to find the libmysqlclient library. Add the following to to your ~/.profile:

export DYLD_LIBRARY_PATH=/usr/local/mysql/lib/
and it will work fine

incompatible character encodings: ASCII-8BIT and UTF-8 in Ruby 1.9.2

While migrating from Ruby 1.8.7 to Ruby 1.9.2 getting error:
incompatible character encodings: ASCII-8BIT and UTF-8 in Ruby 1.9.2

While running rake task, getting error:

rake aborted!

C:/projects/restaurant/lib/tasks/setup.rake:158: invalid multibyte char (US-ASCII)

C:/projects/restaurant/lib/tasks/setup.rake:158: invalid multibyte char (US-ASCII)

C:/projects/restaurant/lib/tasks/setup.rake:158: syntax error, unexpected $end, expecting ')'

     Cuisine.create(:name=>"Caf├⌐")

                                 ^

C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:235:in `load'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:235:in `block in load'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:225:in `block in load_dependency'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:596:in `new_constants_in'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:225:in `load_dependency'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/activesupport-3.0.5/lib/active_support/dependencies.rb:235:in `load'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.5/lib/rails/engine.rb:131:in `block in load_tasks'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.5/lib/rails/engine.rb:131:in `each'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.5/lib/rails/engine.rb:131:in `load_tasks'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.5/lib/rails/application.rb:141:in `load_tasks'

C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.5/lib/rails/application.rb:77:in `method_missing'

C:/projects/restaurant/Rakefile:7:in `<top (required)>'

C:/Ruby192/lib/ruby/1.9.1/rake.rb:2373:in `load'

C:/Ruby192/lib/ruby/1.9.1/rake.rb:2373:in `raw_load_rakefile'

C:/Ruby192/lib/ruby/1.9.1/rake.rb:2007:in `block in load_rakefile'

C:/Ruby192/lib/ruby/1.9.1/rake.rb:2058:in `standard_exception_handling'

C:/Ruby192/lib/ruby/1.9.1/rake.rb:2006:in `load_rakefile'

C:/Ruby192/lib/ruby/1.9.1/rake.rb:1991:in `run'

C:/Ruby192/bin/rake:31:in `<main>'

At some other places getting error :

invalid multibyte char (US-ASCII)

Solution:
Solved it by following steps:

• Make sure 'config.encoding = "utf-8"' is there in application.rb file.
• Make sure you are using 'mysql2' gem
• Putting '# encoding: utf-8' on top of rake file.
• Above 'Starter::Application.initialize!' line in environment.rb file, add following two lines:

Encoding.default_external = Encoding::UTF_8
Encoding.default_internal = Encoding::UTF_8

Thinking Sphinx giving error "Failed to start searchd daemon"

I have Rails 3.0 application running on Windows 7. I am using Thinking Sphinx. I configured it and worked for few days. One day, after some file update when I ran "rake ts:start", it gives following errors:

C:\projects\demo>rake ts:start
(in C:/projects/demo)

Sphinx cannot be found on your system. You may need to configure the following
settings in your config/sphinx.yml file:
  * bin_path
  * searchd_binary_name
  * indexer_binary_name

For more information, read the documentation:
http://freelancing-god.github.com/ts/en/advanced_config.html
C:/Ruby187/bin/rake: No such file or directory - searchd --pidfile --config "C:/projects/demo/config/development.sphinx.conf"
Failed to start searchd daemon. Check C:/projects/demo/log/searchd.log.
Failed to start searchd daemon. Check C:/projects/demo/log/searchd.log

When I checked 'searchd.log' file it displays following error:

[Wed Apr 27 19:28:50.187 2011] [  236] accepting connections

[Wed Apr 27 19:35:05.546 2011] [  236] caught SIGTERM, shutting down

[Wed Apr 27 19:35:05.630 2011] [  236] shutdown complete

Steps to fix the error:

Change the 'config/sphinx.yml' file and give path to bin directory where Sphinx is installed as given below:

development:

  bin_path: "C:/Sphinx/bin"

Then run
rake thinking_sphinx:index
rake thinking_sphinx:start
and it will run without any error.

Could not find gem 'sass (>= 0)' in any of the gem sources listed in your Gemfile

Ruby version - ruby 1.9.2p180 (2011-02-18) [i386-mingw32]
I ran the command 'gem install rails --pre' to install 'Rails 3.1.0.beta1'.

When checking 'rails -v', it gives following errors:
Could not find gem 'sass (>= 0)' in any of the gem sources listed in your Gemfile

Steps to fix the error:
Fixed the error by running the command 'gem install sass' separately.

And then again I checked rails version, it gave:
Rails 3.1.0.beta1

'rake ts:rebuild' giving 'execution expired' error

I have one Rails 3.0 application on linux. I am using Thinking Sphinx.
When I ran rake ts:rebuild, I got following error:

rake ts:rebuild

(in /var/www/rails/sphinx/releases/20110524133955)

d. Use lib/tasks instead. (called from /var/www/rails/sphinx/releases/20110524133955/Rakefile:7)

** Invoke ts:restart (first_time)

** Invoke thinking_sphinx:restart (first_time)

** Invoke thinking_sphinx:app_env (first_time)

** Execute thinking_sphinx:app_env

** Invoke thinking_sphinx:stop (first_time)

** Invoke thinking_sphinx:app_env

** Execute thinking_sphinx:stop

rake aborted!

execution expired

/usr/lib/ruby/1.8/timeout.rb:60

/home/advent-ror/.bundler/ruby/1.8/thinking-sphinx-3fbd0df76796/lib/thinking_sphinx/tasks.rb:53

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain'

/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain'

/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:607:in `invoke_prerequisites'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `each'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:604:in `invoke_prerequisites'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:596:in `invoke_with_call_chain'

/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run'

/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31

/usr/bin/rake:19:in `load'

/usr/bin/rake:19

Steps to fix the error:
This error occurs when search daemon is already running, so first we have to kill the search daemon process.
To find out the process ID, run the command

ps | grep searchd

OR
pgrep searchd
It will give you a process ID.

Kill the process by command
"sudo kill -9 process_id", change the process_id with yours one.

Then run rake ts:rebuild again.

Routing error when running Rails 3 application server in production mode

I was developing a Rails3 application and I wanted to execute a bunch of JavaScript code only on production server. So, in order to do that in my view I added these lines:

<%- if RAILS_ENV == "production" -%>

      -- my JavaScript code --

<% end %>

Now, I wanted to test the code before deploying it on production. So, I needed to start the Rails server in production mode. To start a Rails3 application server in production mode, I passed '-e production' parameter as:
rails s -e production

But when I started browsing the application, all the stylesheets, images were gone and was getting Routing errors similar to the one given below:
Started GET "/javascripts/jquery.js?1303373839" for 127.0.0.1 at Thu May 05 19:55:09 +0530 2011

ActionController::RoutingError (No route matches "/javascripts/jquery.js"):

Reason was - Rails defaults not serve static assets in production, so to fix Routing Errors, I changed

config.serve_static_assets = false

line in 'config/environments/production.rb' to
config.serve_static_assets = true

And restarted the server in production mode. It solved the Routing issue.

Getting error: The specified module could not be found. - C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql-2.8.1-x86-mingw32/lib/1.9/mysql_api.so (LoadError )

After installing pik, added Ruby 1.9.2 and then switched to Ruby 1.9.2, installed rails on Ruby 1.9.2.
On my existing rails application which has already been updated to Rails -v 3.0.3, I ran 'bundle install' and it executed and installed the gems. Tried to run rails server, but got error:

>rails s

C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql-2.8.1-x86-mingw32/lib/mysql.rb:7:in `require': 126: The specified module could not be found.   - C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql-2.8.1-x86-mingw32/lib/1.9/mysql_api.so (LoadError

)

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql-2.8.1-x86-mingw32/lib/mysql.rb:7:in `rescue in <top (required)>'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql-2.8.1-x86-mingw32/lib/mysql.rb:2:in `<top (required)>'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.10/lib/bundler/runtime.rb:68:in `require'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.10/lib/bundler/runtime.rb:68:in `block (2 levels) in require'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.10/lib/bundler/runtime.rb:66:in `each'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.10/lib/bundler/runtime.rb:66:in `block in require'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.10/lib/bundler/runtime.rb:55:in `each'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.10/lib/bundler/runtime.rb:55:in `require'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.10/lib/bundler.rb:120:in `require'

        from C:/projects/working project/phoenix/config/application.rb:7:in `<top (required)>'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:28:in `require'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:28:in `block in <top (required)>'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:27:in `tap'

        from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/commands.rb:27:in `<top (required)>'

        from script/rails:6:in `require'

        from script/rails:6:in `<main>'

To fix this error, I copied "libmySQL.dll" file from 'C:\Program Files\MySQL\MySQL Server 5.1\bin' to 'C:\Ruby192\bin' and then on starting the server it ran without any error.

Getting error "uninitialized constant Rake::RDocTask" while running rake db:migrate

I am upgrading an existing rails application from Rails verison 2.3.5 to 3.0.3.
I added some files, and while running rake db:migrate, getting error:

uninitialized constant Rake::RDocTask

After long searching, running rake --trace and analyzing found the fix.
Added the line

require 'rake/testtask'

require 'rake/rdoctask'

below "require 'rake'" in Rakefile and it worked.

Getting error uninitialized constant ENV_PATH (NameError) on running rails console

My Rails version is - 3.0.3
Ruby version - ruby 1.8.7 (2010-08-16 patchlevel 302) [i386-mingw32]
Gem version - 1.3.7
Operating system - Windows 7

When I run command "rails console" it gives following error:

C:\projects\working project\demo>rails console

C:/Ruby187/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/commands.rb:33: uninitialized constant ENV_PATH (NameError)
        from script/rails:6:in `require'
        from script/rails:6

Note -"Rails console" is not working only for this project and only on Windows 7
("Rails console" for the above project demo is working fine on linux but not working on Windows 7.
"Rails console" on another application on Rails 3 is working fine on Windows 7)

Can anybody guide me how to solve this error?

Getting error: undefined method `to_key' for #

Rails 3 and Authlogic together giving error :

undefined method `to_key' for #<UserSession: no credentials provided>

To fix the error, change the code in user_session.rb as given below:

class UserSession < Authlogic::Session::Base

 def to_key
   new_record? ? nil : [ self.send(self.class.primary_key) ]
  end
end

And it will work fine.
For details, you can refer to http://techoctave.com/c7/posts/37-authlogic-and-rails-3-0-solution

named_scope DEPRECATION WARNING on Rails 3.0.3

While using named_scope in Rails 3.0.3

class Project < ActiveRecord::Base
  named_scope :completed,:conditions=>"finish = true" 
end

you will get DEPRECATION WARNING.

DEPRECATION WARNING: Base.named_scope has been deprecated, please use Base.scope instead. (called from C:/projects/myapp/app/models/project.rb:2)

 To fix this use scope instead of named_scope. Your new code will be:

class Project < ActiveRecord::Base
  scope :completed,:conditions=>"finish = true" 
end

Bundle install on linux giving ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

Ruby version - 1.8.7, Rails version - 3.0.3
While running command bundle install on linux, getting following errors:

Installing bcrypt-ruby (2.1.2) with native extensions /usr/local/lib/site_ruby/1.8/rubygems/installer.rb:483:in `build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

/usr/bin/ruby1.8 extconf.rb
extconf.rb:13:in `require': no such file to load -- mkmf (LoadError)
from extconf.rb:13


Gem files will remain installed in /usr/lib/ruby/gems/1.8/gems/bcrypt-ruby-2.1.2 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/bcrypt-ruby-2.1.2/ext/mri/gem_make.out
from /usr/local/lib/site_ruby/1.8/rubygems/installer.rb:446:in `each'
from /usr/local/lib/site_ruby/1.8/rubygems/installer.rb:446:in `build_extensions'
from /usr/local/lib/site_ruby/1.8/rubygems/installer.rb:198:in `install'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/source.rb:95:in `install'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/installer.rb:55:in `run'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/spec_set.rb:12:in `each'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/spec_set.rb:12:in `each'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/installer.rb:44:in `run'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/installer.rb:8:in `install'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/cli.rb:225:in `install'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/task.rb:22:in `send'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/task.rb:22:in `run'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor.rb:246:in `dispatch'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/lib/bundler/vendor/thor/base.rb:389:in `start'
from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.7/bin/bundle:13
from /usr/bin/bundle:19:in `load'
from /usr/bin/bundle:19

Any suggestion on this?