Ruby on rails 为什么要我跑'；rake db:migrate RAILS_ENV=test'；？

我一直在学习Ryan Bigg的教程“Rails的多租户”。 虽然我已经运行了rakedb:migrate，但我一直收到一个错误，迁移正在挂起。要解决此问题，请运行bin/rake db:migrate RAILS\u ENV=test 如果我这样做，我会得到另一组错误。 因为我没有足够的声誉，我不能在这里发布图片。 如果有人看过这本书，我会在添加add_owner_id_to_accounts迁移后发现错误

任何帮助都将不胜感激。谢谢

这就是我得到的错误：

    /home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:392:in `check_pending!':  (ActiveRecord::PendingMigrationError)

Migrations are pending. To resolve this issue, run:

    bin/rake db:migrate RAILS_ENV=test

    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:405:in `load_schema_if_pending!'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:411:in `block in maintain_test_schema!'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:639:in `suppress_messages'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:416:in `method_missing'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:411:in `maintain_test_schema!'
    from /home/nikhil/workspace2/subscribem/spec/rails_helper.rb:29:in `<top (required)>'
    from /home/nikhil/workspace2/subscribem/spec/features/accounts/sign_up_spec.rb:1:in `require'
    from /home/nikhil/workspace2/subscribem/spec/features/accounts/sign_up_spec.rb:1:in `<top (required)>'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/configuration.rb:1327:in `load'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/configuration.rb:1327:in `block in load_spec_files'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/configuration.rb:1325:in `each'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/configuration.rb:1325:in `load_spec_files'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/runner.rb:102:in `setup'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/runner.rb:88:in `run'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/runner.rb:73:in `run'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/runner.rb:41:in `invoke'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/exe/rspec:4:in `<top (required)>'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/bin/rspec:23:in `load'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/bin/rspec:23:in `<main>'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/bin/ruby_executable_hooks:15:in `eval'
    from /home/nikhil/.rvm/gems/ruby-2.2.2/bin/ruby_executable_hooks:15:in `<main>'

/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:392:in'check\u pending！'（ActiveRecord:：PendingMigrationError）
迁移挂起。要解决此问题，请运行：
bin/rake db:migrate RAILS\u ENV=test
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:405:in'load\u schema\u if\u pending！'
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:411:在“维护测试模式中的块”中
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:639:in“抑制消息”
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:416:in'method\u missing'
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:411:在“维护测试模式”中
from/home/nikhil/workspace2/subscribem/spec/rails\u helper.rb:29:in`'
from/home/nikhil/workspace2/subscribem/spec/features/accounts/sign\u spec.rb:1:in'require'
from/home/nikhil/workspace2/subscribem/spec/features/accounts/sign\u spec.rb:1:in`'
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/configuration.rb:1327:in'load'
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/configuration.rb:1327:“加载规范文件中的块”
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/configuration.rb:1325:in'each'
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/configuration.rb:1325:在“加载规范文件”中
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/runner.rb:102:在“设置”中
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/runner.rb:88:in'run'
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/runner.rb:73:in'run'
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/lib/rspec/core/runner.rb:41:in'invoke'
from/home/nikhil/.rvm/gems/ruby-2.2.2/gems/rspec-core-3.3.1/exe/rspec:4:in`'
from/home/nikhil/.rvm/gems/ruby-2.2.2/bin/rspec:23:in'load'
from/home/nikhil/.rvm/gems/ruby-2.2.2/bin/rspec:23:in`'
from/home/nikhil/.rvm/gems/ruby-2.2.2/bin/ruby\u executable\u hooks:15:in'eval'
from/home/nikhil/.rvm/gems/ruby-2.2.2/bin/ruby\u executable\u hooks:15:in`'

如果我运行rake db:migrate RAILS_ENV=test（正如输出所要求的那样），就会得到这个结果

/home/nikhil/.rvm/gems/ruby-2.2.2/gems/railties-4.2.3/lib/rails/tasks/statistics.rake:4:警告：已初始化常量STATS\u目录
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/railties-4.2.3/lib/rails/tasks/statistics.rake:4:warning:STATS_目录的先前定义在这里
==20150627112900 CreateSubscribemAccounts:正在迁移=========================
--创建表格（：订阅帐户）
雷克流产了！
StandardError:发生错误，此迁移和所有后续迁移已取消：
SQLite3:：SQLException:表“subscribem_accounts”已存在：创建表“subscribem_accounts”（“id”INTEGER主键自动递增不为NULL，“name”varchar，“datetime不为NULL”创建_，“datetime不为NULL”，更新_“datetime不为NULL）/home/nikhil/.rvm/gems/ruby-2.2.2/gems/SQLite3-1.3.10/lib/SQLite3/database.rb:91:in`initialize'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in'new'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in“prepare”
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:134:in'execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/connection\u adapters/sqlite3\u adapter.rb:329:in'block in execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u-record/connection\u adapters/abstract\u adapter.rb:473:在“日志中的块”中
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activesupport-4.2.3/lib/active\u support/notifications/instrumenter.rb:20:in'instrument'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u-record/connection\u-adapters/abstract\u-adapter.rb:467:在“日志”中
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/connection\u adapters/sqlite3\u adapter.rb:329:in'execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/connection\u adapters/abstract/schema\u语句。rb:208:“创建表”中
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:661:“方法中的块丢失”
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:631:in`block in say_with_time'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:631:in“随时间说”
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:651:in'method_missing'
/home/nikhil/workspace2/subscribem/db/migrate/20150627112900_创建_subscribem_账户。rb:3:在“更改”中
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active\u record/migration.rb:605:in'exec\u migration'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:589:在“迁移中的块（2个级别）”中
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:588:在“迁移中的块”中
/h
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/railties-4.2.3/lib/rails/tasks/statistics.rake:4: warning: already initialized constant STATS_DIRECTORIES
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/railties-4.2.3/lib/rails/tasks/statistics.rake:4: warning: previous definition of STATS_DIRECTORIES was here
== 20150627112900 CreateSubscribemAccounts: migrating =========================
-- create_table(:subscribem_accounts)
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

SQLite3::SQLException: table "subscribem_accounts" already exists: CREATE TABLE "subscribem_accounts" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar, "created_at" datetime NOT NULL, "updated_at" datetime NOT NULL) /home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `initialize'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `new'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `prepare'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:134:in `execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/sqlite3_adapter.rb:329:in `block in execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract_adapter.rb:473:in `block in log'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activesupport-4.2.3/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract_adapter.rb:467:in `log'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/sqlite3_adapter.rb:329:in `execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/schema_statements.rb:208:in `create_table'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:661:in `block in method_missing'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:631:in `block in say_with_time'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:631:in `say_with_time'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:651:in `method_missing'
/home/nikhil/workspace2/subscribem/db/migrate/20150627112900_create_subscribem_accounts.rb:3:in `change'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:605:in `exec_migration'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:589:in `block (2 levels) in migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:588:in `block in migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:587:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:764:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:994:in `block in execute_migration_in_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:1040:in `block in ddl_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/transactions.rb:220:in `transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:1040:in `ddl_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:993:in `execute_migration_in_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:955:in `block in migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:951:in `each'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:951:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:819:in `up'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:797:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/tasks/database_tasks.rb:137:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/railties/databases.rake:44:in `block (2 levels) in <top (required)>'
ActiveRecord::StatementInvalid: SQLite3::SQLException: table "subscribem_accounts" already exists: CREATE TABLE "subscribem_accounts" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "name" varchar, "created_at" datetime NOT NULL, "updated_at" datetime NOT NULL) 
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `initialize'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `new'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `prepare'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:134:in `execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/sqlite3_adapter.rb:329:in `block in execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract_adapter.rb:473:in `block in log'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activesupport-4.2.3/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract_adapter.rb:467:in `log'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/sqlite3_adapter.rb:329:in `execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/schema_statements.rb:208:in `create_table'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:661:in `block in method_missing'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:631:in `block in say_with_time'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:631:in `say_with_time'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:651:in `method_missing'
/home/nikhil/workspace2/subscribem/db/migrate/20150627112900_create_subscribem_accounts.rb:3:in `change'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:605:in `exec_migration'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:589:in `block (2 levels) in migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:588:in `block in migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:587:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:764:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:994:in `block in execute_migration_in_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:1040:in `block in ddl_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/transactions.rb:220:in `transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:1040:in `ddl_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:993:in `execute_migration_in_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:955:in `block in migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:951:in `each'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:951:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:819:in `up'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:797:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/tasks/database_tasks.rb:137:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/railties/databases.rake:44:in `block (2 levels) in <top (required)>'
SQLite3::SQLException: table "subscribem_accounts" already exists
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `initialize'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `new'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:91:in `prepare'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/sqlite3-1.3.10/lib/sqlite3/database.rb:134:in `execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/sqlite3_adapter.rb:329:in `block in execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract_adapter.rb:473:in `block in log'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activesupport-4.2.3/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract_adapter.rb:467:in `log'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/sqlite3_adapter.rb:329:in `execute'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/schema_statements.rb:208:in `create_table'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:661:in `block in method_missing'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:631:in `block in say_with_time'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:631:in `say_with_time'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:651:in `method_missing'
/home/nikhil/workspace2/subscribem/db/migrate/20150627112900_create_subscribem_accounts.rb:3:in `change'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:605:in `exec_migration'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:589:in `block (2 levels) in migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:588:in `block in migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:292:in `with_connection'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:587:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:764:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:994:in `block in execute_migration_in_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:1040:in `block in ddl_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/transactions.rb:220:in `transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:1040:in `ddl_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:993:in `execute_migration_in_transaction'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:955:in `block in migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:951:in `each'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:951:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:819:in `up'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/migration.rb:797:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/tasks/database_tasks.rb:137:in `migrate'
/home/nikhil/.rvm/gems/ruby-2.2.2/gems/activerecord-4.2.3/lib/active_record/railties/databases.rake:44:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:migrate => app:db:migrate
(See full trace by running task with --trace)

ActiveRecord::Migration.maintain_test_schema!

SQLite3::SQLException: table "subscribem_accounts" already exists

rake db:reset