Ruby on Rails安裝，Windows10上的Ubuntu＃ <Mysql2::Error: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)>

Question

我已按照以下說明在Windows 10的Ubuntu上安裝了Ruby on Rails： https ： //gorails.com/setup/windows/10

當我創建數據庫（ rake db:create ）時，兩次收到以下錯誤消息：

User1@My-Macine:~/test1$ rake db:create 
#<Mysql2::Error: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)>
Couldn't create database for {"adapter"=>"mysql2", "encoding"=>"utf8", "pool"=>5, "username"=>"root", "password"=>"xxxxx", "host"=>"localhost", "database"=>"test1_development"}, {:charset=>"utf8", :collation=>"utf8_unicode_ci"}
(If you set the charset manually, make sure you have a matching collation)

我的config/database.yml是以下內容：

default: &default
  adapter: mysql2
  encoding: utf8
  pool: 5
  username: root
  password: xxxxx
  host: localhost

development:
  <<: *default
  database: test1_development

test:
  <<: *default
  database: test1_test


production:
  <<: *default
  database: test1_production
  username: test1
  password: <%= ENV['TEST1_DATABASE_PASSWORD'] %>

我還檢查了mysqld dir和mysqld.sock文件，它們不存在。 因此，根據其他答案，我嘗試創建mysqld目錄並重新啟動mysql

sudo mkdir /var/run/mysqld/
sudo service mysql restart

重新啟動失敗，並收到以下錯誤消息

initctl: Unable to connect to Upstart: Failed to connect to socket /com/ubuntu/upstart: Connection refused

我在這里檢查了類似案例/問題的解決方案，但無法解決。 您能幫我解決這個問題嗎？

Answer 1

終於，我找到了。 我還必須在新創建的mysqld目錄中創建mysqld.pid和mysqld.sock文件，然后重新啟動mysql 。 我在這里找到了答案： https : //superuser.com/questions/980841/why-is-mysqld-pid-and-mysqld-sock-missing-from-my-system-even-though-the-val