On every Rails projects I have on my computer, since I've reinstalled it, I can't run any migration: nothing happens when I enter rake db:migrate in a terminal
$ my_project ➜ rails g migration fake_migration
invoke active_record
create db/migrate/20140806092408_fake_migration.rb
$ my_project ➜ rake db:migrate:status
database: /Users/me/Documents/my_project/db/development.sqlite3
Status Migration ID Migration Name
--------------------------------------------------
down 20140806092408 Fake migration
$ my_project ➜ rake db:migrate
** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Invoke db:load_config (first_time)
** Execute db:load_config
** Execute db:migrate
** Invoke db:_dump (first_time)
** Execute db:_dump
** Invoke db:schema:dump (first_time)
** Invoke environment
** Invoke db:load_config
** Execute db:schema:dump
$ my_project ➜ rake db:migrate:status
database: /Users/me/Documents/my_project/db/development.sqlite3
Status Migration ID Migration Name
--------------------------------------------------
down 20140806092408 Fake migration
And when I try to migrate manually (as suggested in comments):
$ my_project ➜ rake db:migrate:up VERSION=20140806092408 --trace
rake aborted!
ActiveRecord::UnknownMigrationVersionError:
No migration with version number 20140806092408
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/activerecord-4.1.4/lib/active_record/migration.rb:933:in `run'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/activerecord-4.1.4/lib/active_record/migration.rb:818:in `run'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/activerecord-4.1.4/lib/active_record/railties/databases.rake:71:in `block (3 levels) in <top (required)>'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:240:in `call'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:240:in `block in execute'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:235:in `each'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:235:in `execute'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/2.1.0/monitor.rb:211:in `mon_synchronize'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:172:in `invoke_with_call_chain'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:165:in `invoke'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/application.rb:150:in `invoke_task'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/application.rb:106:in `block (2 levels) in top_level'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/application.rb:106:in `each'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/application.rb:106:in `block in top_level'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/application.rb:115:in `run_with_threads'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/application.rb:100:in `top_level'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/application.rb:78:in `block in run'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/application.rb:176:in `standard_exception_handling'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/lib/rake/application.rb:75:in `run'
/Users/me/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/rake-10.3.2/bin/rake:33:in `<top (required)>'
/Users/me/.rbenv/versions/2.1.2/bin/rake:23:in `load'
/Users/me/.rbenv/versions/2.1.2/bin/rake:23:in `<main>'
Tasks: TOP => db:migrate:up
Problem solved by using Vagrant instead of local installation. Don't really know what was the issue, maybe in tie with Mac OS X.