Hi! First of all, this is my first application on Rails, and i’m stuck
at a
migration. i created a demo app (the demo_app from michael hartl’s
tutorial) as usual: rails new demo_app, rails generate scaffold User
name:string email:string, and when i do rake db:migrate, this stack
appears:
rake db:migrate --trace
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Invoke db:load_config (first_time)
** Execute db:load_config
** Execute db:migrate
rake aborted!
NoMethodError: undefined method to_a' for #<SQLite3::Statement:0x9d6a2dc>: SELECT name FROM sqlite_master WHERE type = 'table' AND NOT name = 'sqlite_sequence' AND name = "schema_migrations" /var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/connection_adapters/sqlite_adapter.rb:248:inblock in exec_query’
/var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/connection_adapters/abstract_adapter.rb:280:in
block in log' /var/lib/gems/1.9.1/gems/activesupport-3.2.8/lib/active_support/notifications/instrumenter.rb:20:ininstrument’
/var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/connection_adapters/abstract_adapter.rb:275:in
log' /var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/connection_adapters/sqlite_adapter.rb:242:inexec_query’
/var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/connection_adapters/sqlite_adapter.rb:335:in
tables' /var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/connection_adapters/sqlite_adapter.rb:341:intable_exists?’
/var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/connection_adapters/abstract/schema_statements.rb:425:in
initialize_schema_migrations_table' /var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/migration.rb:663:ininitialize’
/var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/migration.rb:570:in
new' /var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/migration.rb:570:inup’
/var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/migration.rb:551:in
migrate' /var/lib/gems/1.9.1/gems/activerecord-3.2.8/lib/active_record/railties/databases.rake:153:inblock (2 levels) in <top (required)>’
/var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:205:in call' /var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:205:inblock in
execute’
/var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:200:in each' /var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:200:inexecute’
/var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:158:in block in invoke_with_call_chain' /usr/lib/ruby/1.9.1/monitor.rb:211:inmon_synchronize’
/var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:151:in
invoke_with_call_chain' /var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/task.rb:144:ininvoke’
/var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:116:in
invoke_task' /var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:inblock
(2 levels) in top_level’
/var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:in
each' /var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:94:inblock
in top_level’
/var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:133:in
standard_exception_handling' /var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:88:intop_level’
/var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:66:in
block in run' /var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:133:instandard_exception_handling’
/var/lib/gems/1.9.1/gems/rake-0.9.2.2/lib/rake/application.rb:63:in
run' /var/lib/gems/1.9.1/gems/rake-0.9.2.2/bin/rake:33:in<top (required)>’
/usr/local/bin/rake:19:in load' /usr/local/bin/rake:19:in’
Tasks: TOP => db:migrate
This is the Gemfile:
source ‘https://rubygems.org’
gem ‘rails’, ‘3.2.8’
Bundle edge Rails instead:
gem ‘rails’, :git => ‘git://github.com/rails/rails.git’
gem ‘sqlite3’
gem ‘sqlite3-ruby’, ‘1.2.5’, :require => ‘sqlite3’
Gems used only for assets and not required
in production environments by default.
group :assets do
gem ‘sass-rails’, ‘~> 3.2.3’
gem ‘coffee-rails’, ‘~> 3.2.1’
See https://github.com/sstephenson/execjs#readme for more supported
runtimes
gem ‘therubyracer’, :platforms => :ruby
gem ‘uglifier’, ‘>= 1.0.3’
end
gem ‘jquery-rails’
To use ActiveModel has_secure_password
gem ‘bcrypt-ruby’, ‘~> 3.0.0’
To use Jbuilder templates for JSON
gem ‘jbuilder’
Use unicorn as the app server
gem ‘unicorn’
Deploy with Capistrano
gem ‘capistrano’
To use debugger
gem ‘debugger’
Any pointer to something i missed, or something wrong, will be highly
appreciated. If you need any additional info in order to help, please
ask,
:)a