我有一个rails应用程序，不会将数据加载到rake db:seed上的数据库。

我试图通过rake db:seed RAILS_ENV=developement --trace找出它给出了以下错误

** Invoke db:seed (first_time)

** Execute db:seed

** Invoke db:abort_if_pending_migrations (first_time)

** Invoke environment (first_time)

** Execute environment

rake aborted!

database configuration does not specify adapter

/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activerecord-4.0.0.rc1/lib/active_record/connection_adapters/connection_specification.rb:52:in
resolve_hash_connection'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activerecord-4.0.0.rc1/lib/active_record/connection_adapters/connection_specification.rb:46:in
resolve_string_connection'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activerecord-4.0.0.rc1/lib/active_record/connection_adapters/connection_specification.rb:30:in
spec'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activerecord-4.0.0.rc1/lib/active_record/connection_handling.rb:39:in
establish_connection'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activerecord-4.0.0.rc1/lib/active_record/railtie.rb:170:in
block (2 levels) in '
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activesupport-4.0.0.rc1/lib/active_support/lazy_load_hooks.rb:38:in
instance_eval'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activesupport-4.0.0.rc1/lib/active_support/lazy_load_hooks.rb:38:in
execute_hook'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activesupport-4.0.0.rc1/lib/active_support/lazy_load_hooks.rb:28:in
block in on_load'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activesupport-4.0.0.rc1/lib/active_support/lazy_load_hooks.rb:27:in
each'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activesupport-4.0.0.rc1/lib/active_support/lazy_load_hooks.rb:27:in
on_load'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activerecord-4.0.0.rc1/lib/active_record/railtie.rb:168:in
block in '
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/railties-4.0.0.rc1/lib/rails/initializable.rb:30:in
instance_exec'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/railties-4.0.0.rc1/lib/rails/initializable.rb:30:in
run'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/railties-4.0.0.rc1/lib/rails/initializable.rb:55:in
block in run_initializers'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/tsort.rb:150:in
block in tsort_each'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/tsort.rb:183:in
block (2 levels) in each_strongly_connected_component'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/tsort.rb:219:in
each_strongly_connected_component_from'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/tsort.rb:182:in
block in each_strongly_connected_component'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/tsort.rb:180:in
each'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/tsort.rb:180:in
each_strongly_connected_component'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/tsort.rb:148:in
tsort_each'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/railties-4.0.0.rc1/lib/rails/initializable.rb:54:in
run_initializers'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/railties-4.0.0.rc1/lib/rails/application.rb:214:in
initialize!'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/railties-4.0.0.rc1/lib/rails/railtie/configurable.rb:30:in
method_missing'
/Users/MacBook/rails_projects/medicaldevicehub/config/environment.rb:5:in
'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activesupport-4.0.0.rc1/lib/active_support/dependencies.rb:228:in
require'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activesupport-4.0.0.rc1/lib/active_support/dependencies.rb:228:in
block in require'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activesupport-4.0.0.rc1/lib/active_support/dependencies.rb:213:in
load_dependency'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activesupport-4.0.0.rc1/lib/active_support/dependencies.rb:228:in
require'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/railties-4.0.0.rc1/lib/rails/application.rb:188:in
require_environment!'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/railties-4.0.0.rc1/lib/rails/application.rb:248:in
block in run_tasks_blocks'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:246:in
call'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:246:in
block in execute'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:241:in
each'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:241:in
execute'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:184:in
block in invoke_with_call_chain'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/monitor.rb:211:in
mon_synchronize'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:177:in
invoke_with_call_chain'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:205:in
block in invoke_prerequisites'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:203:in
each'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:203:in
invoke_prerequisites'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:183:in
block in invoke_with_call_chain'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/monitor.rb:211:in
mon_synchronize'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:177:in
invoke_with_call_chain'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:170:in
invoke'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/gems/activerecord-4.0.0.rc1/lib/active_record/railties/databases.rake:180:in
block (2 levels) in '
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:246:in
call'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:246:in
block in execute'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:241:in
each'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:241:in
execute'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:184:in
block in invoke_with_call_chain'
/Users/MacBook/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/monitor.rb:211:in
mon_synchronize'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:177:in
invoke_with_call_chain'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/task.rb:170:in
invoke'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/application.rb:143:in
invoke_task'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/application.rb:101:in
block (2 levels) in top_level'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/application.rb:101:in
each'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/application.rb:101:in
block in top_level'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/application.rb:110:in
run_with_threads'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/application.rb:95:in
top_level'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/application.rb:73:in
block in run'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/application.rb:160:in
standard_exception_handling'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/lib/rake/application.rb:70:in
run'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/gems/rake-10.0.4/bin/rake:33:in
'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/bin/rake:23:in load'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195@global/bin/rake:23:in
'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/bin/ruby_noexec_wrapper:14:in
eval'
/Users/MacBook/.rvm/gems/ruby-2.0.0-p195/bin/ruby_noexec_wrapper:14:in
' Tasks: TOP => db:abort_if_pending_migrations => environment

这是我的database.yml文件：

有一个错字

rake db：seed RAILS_ENV = developement --trace

做了

rake db：seed RAILS_ENV = development --trace