基于Postman中的报错

postman中的报错：

could not get any response 错误

could not get any response
there was an error connecting to http://127.0.0.1:8888/api/private/v1/login.
why this might have happened:
the server couldn't send a response:
ensure that the backend is working properly
self-signed ssl certificates are being blocked:
fix this by turning off 'ssl certificate verification' in settings > general
proxy configured incorrectly
ensure that proxy is configured correctly in settings > proxy
request timeout:
change request timeout in settings > general

　　原因：为打开接口文件 app.js

解决方法：

api项目中 shift+右键  打开命令行输入：node app 运行

报错解决！