![MongoNetworkError: failed to connect to server [localhost:27017] on first connect [Error: connect EC_Amy_ke的博客-CSDN博客 MongoNetworkError: failed to connect to server [localhost:27017] on first connect [Error: connect EC_Amy_ke的博客-CSDN博客](https://img-blog.csdnimg.cn/20200424204643903.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0FteV9rZQ==,size_16,color_FFFFFF,t_70)
MongoNetworkError: failed to connect to server [localhost:27017] on first connect [Error: connect EC_Amy_ke的博客-CSDN博客
![javascript - UnhandledPromiseRejectionWarning: MongoNetworkError: failed to connect to server [localhost:27017] on first connect [MongoNetworkError - Stack Overflow javascript - UnhandledPromiseRejectionWarning: MongoNetworkError: failed to connect to server [localhost:27017] on first connect [MongoNetworkError - Stack Overflow](https://i.stack.imgur.com/hNZG6.png)
javascript - UnhandledPromiseRejectionWarning: MongoNetworkError: failed to connect to server [localhost:27017] on first connect [MongoNetworkError - Stack Overflow
![node.js - MongoNetworkError: failed to connect to server on first connect [ MongoNetworkError: connect ECONNREFUSED ] - Stack Overflow node.js - MongoNetworkError: failed to connect to server on first connect [ MongoNetworkError: connect ECONNREFUSED ] - Stack Overflow](https://i.stack.imgur.com/LAzWr.png)
node.js - MongoNetworkError: failed to connect to server on first connect [ MongoNetworkError: connect ECONNREFUSED ] - Stack Overflow
![运行mongo出现Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed_create13的博客-CSDN博客 运行mongo出现Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed_create13的博客-CSDN博客](https://img-blog.csdnimg.cn/20200506174405577.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MTExMDE1,size_16,color_FFFFFF,t_70)
运行mongo出现Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed_create13的博客-CSDN博客
![node.js - { MongoNetworkError: failed to connect to server on first connect [MongoError: bad auth : Authentication failed.] - Stack Overflow node.js - { MongoNetworkError: failed to connect to server on first connect [MongoError: bad auth : Authentication failed.] - Stack Overflow](https://i.stack.imgur.com/D3wL7.png)
node.js - { MongoNetworkError: failed to connect to server on first connect [MongoError: bad auth : Authentication failed.] - Stack Overflow
![How to resolve “Error Connecting to db. MongoNetworkError” when connecting to localhost MongoDB through MongoClient from NodeJS | by Bryant Jimin Son | Medium How to resolve “Error Connecting to db. MongoNetworkError” when connecting to localhost MongoDB through MongoClient from NodeJS | by Bryant Jimin Son | Medium](https://miro.medium.com/v2/resize:fit:1400/1*WwJCKQKeZ7H9ghT_qd7iGA.png)
How to resolve “Error Connecting to db. MongoNetworkError” when connecting to localhost MongoDB through MongoClient from NodeJS | by Bryant Jimin Son | Medium
UnhandledPromiseRejectionWarning: MongoNetworkError: failed to connect to server · Issue #6463 · Automattic/mongoose · GitHub
MongoNetworkError: failed to connect to server [localhost:27017] on first connect [{ MongoError: Authentication failed. · Issue #655 · mongo-express/mongo-express · GitHub
![MongoNetworkError: failed to connect to server [localhost:27017] on first connect [Error: connect ECONNREFUSED 127.0.0.1:27017 · Issue #338 · microsoft/TypeScript-Node-Starter · GitHub MongoNetworkError: failed to connect to server [localhost:27017] on first connect [Error: connect ECONNREFUSED 127.0.0.1:27017 · Issue #338 · microsoft/TypeScript-Node-Starter · GitHub](https://user-images.githubusercontent.com/17202780/128211875-fa65f93c-46a2-4c0f-a379-6d7c0f88a7b9.png)
MongoNetworkError: failed to connect to server [localhost:27017] on first connect [Error: connect ECONNREFUSED 127.0.0.1:27017 · Issue #338 · microsoft/TypeScript-Node-Starter · GitHub
![MongoError: failed to connect to server [localhost:27017] on first connect [MongoError: connect ECONNREFUSED 127.0.0.1:27017] · Issue #15 · vinnyoodles/react-native-socket-io-example · GitHub MongoError: failed to connect to server [localhost:27017] on first connect [MongoError: connect ECONNREFUSED 127.0.0.1:27017] · Issue #15 · vinnyoodles/react-native-socket-io-example · GitHub](https://user-images.githubusercontent.com/13778798/37012118-0096d0aa-212e-11e8-9bcb-73d8913a358d.png)
MongoError: failed to connect to server [localhost:27017] on first connect [MongoError: connect ECONNREFUSED 127.0.0.1:27017] · Issue #15 · vinnyoodles/react-native-socket-io-example · GitHub
![mongoDB Error]Error on DB Connection: MongoNetworkError: failed to connect to server [localhost:27017] on first connect [Error: connect ECONNREFUSED 127.0.0.1:27017 at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1141:16) { name: 'MongoNetwo.. mongoDB Error]Error on DB Connection: MongoNetworkError: failed to connect to server [localhost:27017] on first connect [Error: connect ECONNREFUSED 127.0.0.1:27017 at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1141:16) { name: 'MongoNetwo..](https://i1.daumcdn.net/thumb/C264x200/?fname=https://blog.kakaocdn.net/dn/b4mCBT/btqFk6tjn1V/0aQUA14zMBRBTAEaQWXKUk/img.png)