Ngrok errors '502 bad gateway'

Question

Quite new to using any sort of Web App stuff, and I\'ve been trying to slowly build a Facebook Messenger Bot. When I try to use ngrok I can\'t visit the address I\'m given,

Answer 1

502 gateway error occurs because ngrok not able to receive any reponse from Localhost.

The things need to be done is :

1. Start a webserver in a Port
2. Trigger ngrok command in that Port.

What I have done is

• Started a tomcat Web Server in 8080.
• Then Triggered ngrok http 8080.

It works really cool ...
Try this .....
Hope it works for You .