嘿伙计们我最近将我的mac更新到最新的OS X 10.12.3 以前我的rails项目工作正常，现在每当我启动我的rails服务器时，我的项目都会出现此错误。我已经在stackoverflow中尝试了很多不同的解决方案，它仍然无法正常工作。
以下是我试过的一些
Postgres could not connect to server
PostgreSQL error 'Could not connect to server: No such file or directory'
谢谢，请帮帮我
PG::ConnectionBad (could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
):
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `initialize'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `new'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `connect'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:217:in `initialize'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:37:in `new'
activerecord (5.0.0.1) lib/active_record/connection_adapters/postgresql_adapter.rb:37:in `postgresql_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:721:in `new_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:765:in `checkout_new_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:744:in `try_to_checkout_new_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:705:in `acquire_connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:501:in `checkout'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:364:in `connection'
activerecord (5.0.0.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:875:in `retrieve_connection'
activerecord (5.0.0.1) lib/active_record/connection_handling.rb:128:in `retrieve_connection'
activerecord (5.0.0.1) lib/active_record/connection_handling.rb:91:in `connection'
activerecord (5.0.0.1) lib/active_record/migration.rb:558:in `connection'
activerecord (5.0.0.1) lib/active_record/migration.rb:545:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/callbacks.rb:38:in `block in call'
activesupport (5.0.0.1) lib/active_support/callbacks.rb:97:in `__run_callbacks__'
activesupport (5.0.0.1) lib/active_support/callbacks.rb:750:in `_run_call_callbacks'
activesupport (5.0.0.1) lib/active_support/callbacks.rb:90:in `run_callbacks'
actionpack (5.0.0.1) lib/action_dispatch/middleware/callbacks.rb:36:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/executor.rb:12:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/remote_ip.rb:79:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/debug_exceptions.rb:49:in `call'
web-console (3.3.1) lib/web_console/middleware.rb:131:in `call_app'
web-console (3.3.1) lib/web_console/middleware.rb:28:in `block in call'
web-console (3.3.1) lib/web_console/middleware.rb:18:in `catch'
web-console (3.3.1) lib/web_console/middleware.rb:18:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/show_exceptions.rb:31:in `call'
railties (5.0.0.1) lib/rails/rack/logger.rb:36:in `call_app'
railties (5.0.0.1) lib/rails/rack/logger.rb:24:in `block in call'
activesupport (5.0.0.1) lib/active_support/tagged_logging.rb:70:in `block in tagged'
activesupport (5.0.0.1) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (5.0.0.1) lib/active_support/tagged_logging.rb:70:in `tagged'
railties (5.0.0.1) lib/rails/rack/logger.rb:24:in `call'
sprockets-rails (3.2.0) lib/sprockets/rails/quiet_assets.rb:13:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/request_id.rb:24:in `call'
rack (2.0.1) lib/rack/method_override.rb:22:in `call'
rack (2.0.1) lib/rack/runtime.rb:22:in `call'
activesupport (5.0.0.1) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/executor.rb:12:in `call'
actionpack (5.0.0.1) lib/action_dispatch/middleware/static.rb:136:in `call'
rack (2.0.1) lib/rack/sendfile.rb:111:in `call'
railties (5.0.0.1) lib/rails/engine.rb:522:in `call'
rack (2.0.1) lib/rack/handler/webrick.rb:86:in `service'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread'
Rendering /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.html.erb within rescues/layout
Rendering /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_source.html.erb
Rendered /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_source.html.erb (5.0ms)
Rendering /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb
Rendered /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (1.2ms)
Rendering /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb
Rendered /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (0.7ms)
Rendered /Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.html.erb within rescues/layout (98.5ms)
[2017-02-01 15:42:00] ERROR PG::ConnectionBad: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `initialize'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `new'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:671:in `connect'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:217:in `initialize'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:37:in `new'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/postgresql_adapter.rb:37:in `postgresql_connection'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:721:in `new_connection'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:765:in `checkout_new_connection'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:744:in `try_to_checkout_new_connection'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:705:in `acquire_connection'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:501:in `checkout'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:364:in `connection'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:875:in `retrieve_connection'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_handling.rb:128:in `retrieve_connection'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/connection_handling.rb:91:in `connection'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activerecord-5.0.0.1/lib/active_record/query_cache.rb:47:in `block in install_executor_hooks'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:396:in `instance_exec'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:396:in `block in make_lambda'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:169:in `block (2 levels) in halting'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:547:in `block (2 levels) in default_terminator'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:546:in `catch'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:546:in `block in default_terminator'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:170:in `block in halting'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:454:in `block in call'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:454:in `each'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:454:in `call'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:101:in `__run_callbacks__'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:750:in `_run_complete_callbacks'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/callbacks.rb:90:in `run_callbacks'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/activesupport-5.0.0.1/lib/active_support/execution_wrapper.rb:107:in `complete!'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/actionpack-5.0.0.1/lib/action_dispatch/middleware/executor.rb:13:in `block in call'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/body_proxy.rb:23:in `close'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/gems/2.3.0/gems/rack-2.0.1/lib/rack/handler/webrick.rb:115:in `service'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
/Users/leo/.rbenv/versions/2.3.2/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread'
答案 0 :(得分：2)
尝试使用以下命令启动postgres服务器：
var count = 1;
var count2 = 0;
document.getElementById("element1").onkeyup = function () {
if (count2 === 0) {
var content1 = document.getElementById("element2").innerHTML;
count2 = 1;
}
if (document.getElementById("element1").value !== "") {
document.getElementById("element2").innerHTML = "";
count = 0;
} else if (count === 0) {
document.getElementById("element2").innerHTML = content1;
count = 1;
}
};
答案 1 :(得分：0)