Your Error log could show something like this
If you are targeting a cloud instance, supply these IDs if contacting Microsoft support.
Sending request to http://localhost:-------BC190/dev/metadata?tenant=default
Error: Could not connect to the server. Please verify that:
1. The server is started.
2. The development endpoint is enabled (DeveloperServicesEnabled server setting).
3. The service name matches the one specified in the URL.
4. The port number matches the one specified in the URL (DeveloperServicesPort server setting)
Option 2 resolved the problem.
Good luck
