Node with MongoDB is configured to appear when access is completed
Error: reach econnunion 127.0.0.0.1 :27017, return Error
The reason is that your MongoDB database is not open,
The solution under Node can be turned on by Mongod
 
Here are the links I found:
https://cnodejs.org/topic/5646b746c5dcc06702210adf
https://stackoverflow.com/questions/36400233/connect-econnrefused-127-0-0-127017

Reproduced in: https://www.cnblogs.com/herewego/p/9278904.html