PG ::错误：无法连接到服务器：连接被拒绝

当你做rake db:migrate:up VERSION="出现错误PG ::错误：无法连接到服务器：连接被拒绝

PG::Error: could not connect to server: Connection refused 
    Is the server running on host "localhost" (127.0.0.1) and accepting 
    TCP/IP connections on port 5454?

的postgresql.conf

#listen_addresses = 'localhost'  # what IP address(es) to listen on; 
        # comma-separated list of addresses; 
        # defaults to 'localhost'; use '*' for all 
        # (change requires restart) 
port = 5432    # (change requires restart)

在其他项目的迁移工作正常

gem 'pg' 0.14.1 

postgresql 9.3

如何清除错误？ 5454端口在哪里？

如果我在postgresql.conf中更改端口可以脱离其他项目的迁移？

来源

2017-02-24 dmitriy

是端口5454的配置文件'配置/ database.yml'规定看？ – Ctx

好像你改变了config/database.yml的端口。默认端口为5432，你可以在你的postgresql.conf

development: 
    adapter: postgresql 
    encoding: utf8 
    reconnect: false 
    database: development 
    pool: 5 
    username: postgres 
    password: password 
    host: localhost 
    port: 5454 # Change it to 5432

来源

2017-02-24 16:45:29

PG ::错误：无法连接到服务器：连接被拒绝

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