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当我运行我rails server的 并加载我的localhost:3000页面时，我收到一条错误消息，提示我没有提供数据库密码。

我正在使用更好的错误 gem，所以它显示我转到我的postgresql-adapter.rb文件（位于C:\RailsInstaller\Ruby1.9.3\lib\ruby\gems\1.9.1\gems\activerecord-4.0.0\lib\active_record\connection_adapters）并转到第 825 行。该行周围的代码块是这样的：

# 连接到 PostgreSQL 服务器并根据连接服务器的特性设置适配器。 def connect @connection = PGconn.connect(@connection_parameters)

编辑：

这是我的database.yml文件的内容：

<# PostgreSQL. Versions 8.2 and up are supported.
#
# Install the pg driver:
#   gem install pg
# On OS X with Homebrew:
#   gem install pg -- --with-pg-config=/usr/local/bin/pg_config
# On OS X with MacPorts:
#   gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config
# On Windows:
#   gem install pg
#       Choose the win32 build.
#       Install PostgreSQL and put its /bin directory on your path.
#
# Configure Using Gemfile
# gem 'pg'
#
development:
  adapter: postgresql
  encoding: unicode
  database: frodo-traveller_development
  pool: 5
  username: frodo-traveller
  password:

  # Connect on a TCP socket. Omitted by default since the client uses a
  # domain socket that doesn't need configuration. Windows does not have
  # domain sockets, so uncomment these lines.
  #host: localhost

  # The TCP port the server listens on. Defaults to 5432.
  # If your server runs on a different port number, change accordingly.
  #port: 5432

  # Schema search path. The server defaults to $user,public
  #schema_search_path: myapp,sharedapp,public

  # Minimum log levels, in increasing order:
  #   debug5, debug4, debug3, debug2, debug1,
  #   log, notice, warning, error, fatal, and panic
  # Defaults to warning.
  #min_messages: notice

# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  adapter: postgresql
  encoding: unicode
  database: frodo-traveller_test
  pool: 5
  username: frodo-traveller
  password:

production:
  adapter: postgresql
  encoding: unicode
  database: frodo-traveller_production
  pool: 5
  username: frodo-traveller
  password
</code

>

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