C:RailsInstallerRuby2.2.0binruby.exe -e $stdout.sync=true;$stderr.sync=true;load($0=ARGV.shift) C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/bin/rails db:migrate
rails aborted!
StandardError: An error has occurred, all later migrations canceled:

Mysql2::Error: Table 'rubyandroid_development.users' doesn't exist: CREATE UNIQUE INDEX `index_users_on_authentication_token`  ON `users` (`authentication_token`)
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/db/migrate/20160826225028_devise_create_users.rb:12:in `block in change'
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/db/migrate/20160826225028_devise_create_users.rb:3:in `change'
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/bin/rails:4:in `require'
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/bin/rails:4:in `<top (required)>'
-e:1:in `load'
-e:1:in `<main>'
ActiveRecord::StatementInvalid: Mysql2::Error: Table 'rubyandroid_development.users' doesn't exist: CREATE UNIQUE INDEX `index_users_on_authentication_token`  ON `users` (`authentication_token`)
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/db/migrate/20160826225028_devise_create_users.rb:12:in `block in change'
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/db/migrate/20160826225028_devise_create_users.rb:3:in `change'
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/bin/rails:4:in `require'
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/bin/rails:4:in `<top (required)>'
-e:1:in `load'
-e:1:in `<main>'
Mysql2::Error: Table 'rubyandroid_development.users' doesn't exist
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/db/migrate/20160826225028_devise_create_users.rb:12:in `block in change'
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/db/migrate/20160826225028_devise_create_users.rb:3:in `change'
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/bin/rails:4:in `require'
C:/Benutzer/Clemens/RubymineProjects/RubyAndroid/bin/rails:4:in `<top (required)>'
-e:1:in `load'
-e:1:in `<main>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)
== 20160826225028 DeviseCreateUsers: migrating ================================
-- create_table(:users)
-- add_index(:users, :authentication_token, {:unique=>true})

Process finished with exit code 1