I am trying to follow the example outlined here of creating a simple echo bot for Facebook Messenger https://developers.facebook.com/docs/messenger-platform/quickstart
I got most of it working, except for the sending message response part. I keep getting this error
Error sending message: { [Error: Not Found]
...
error:
{ [Error: cannot POST /v2.6/me/messages?access_token=<PAGE_TOKEN> (404)]
status: 404,
text: '404 File Not Found',
method: 'POST'
I am not sure why I would get a "404 File Not Found" error, and don't know what to do to fix it. Any advice or suggestion would be really appreciated!