无法连接到mongodb错误:无法通过src/mongo/shell/mongo.js:L112连接到服务器127.0.0.1:27017

每当我尝试连接到mongo db时，总会出现以下错误.

When ever I try to connect to mongo db I always get this error as below.

MongoDB Shell版本:2.4.3 连接到:测试 Fri Apr 26 14:31:46.941 JavaScript执行失败:错误:无法通过src/mongo/shell/mongo.js:L112连接到服务器127.0.0.1:27017 例外:连接失败

MongoDB shell version: 2.4.3 connecting to: test Fri Apr 26 14:31:46.941 JavaScript execution failed: Error: couldn't connect to server 127.0.0.1:27017 at src/mongo/shell/mongo.js:L112 exception: connect failed

我尝试了*中列出的各种解决方案，并尝试了以下命令，但没有任何效果.

I tried various solutions listed in * and tried following commands but nothing works.

1)sudo rm/var/lib/mongodb/mongod.lock

1) sudo rm /var/lib/mongodb/mongod.lock

//表示这样的文件位于此位置.

// says such file located at this place.

2)sudo服务mongodb start

2) sudo service mongodb start

//错误:sudo:服务:找不到命令

// error: sudo: service: command not found

3)我确保该端口上没有其他运行.

3) I've made sure nothing else is running at that port.

4)甚至尝试再次卸载并安装它.

4) Even tried uninstalling and installing it again.

5)还尝试杀死pid

5) Also tried kill pid