Cannot send messages from Microsoft Bot Framework

Version 3.5.20

The emulator at first is supposed to return a response with the number of characters of a user input string. However even after using the default endpoint url which is http://localhost:3978/api/messages, whenever inputting a string, the message is not sent.

When accessing the app settings, the emulator port is modifiable. The emulator port was 9002 by default and even changing it to 9000 (which I remember seeing in some other posts) did not fix the issue.

What appears in the log is:-

Emulator listening on http://[::]:9002
failed to start ngrok: spawn D:\Downloads\Setup\ngrok-stable-windows-amd64\ngrok.
Click here to configure ngrok.
Checking for new verson...
Application is up to date.

http://stackoverflow.com/questions/40822507/cannot-send-messages-from-microsoft-bot-framework/40901454#40901454

[res63661]

In my emulator it was trying port 3978 but the default from my PROJECT was 3979. Notice the final digit is one off. I missed this for a minute or two. Also use “localhost” and not the default 127.0.0.1. This approach worked for me.

[ravidalli]

Thanks, this resolved my issue.