Ask about custom alexa smarthome skill by TomerFi

Hi, i’m a newbie,

Im following this guide to create a custom alexa skill to control AC via climate (, but im stuck at step Configuring the skill interface: Part 2, i did all the thing, but when i enable my skill on alexa app, i got this error:

We were unable to link Ngoi Nha Thong Minh at this time.
The authorization server returned with an error parameter. Please refer to for more details.

my config at this step is:

I thing since the interface for developer has changed so the tut is not true anymore, i do some search but dont know how to link account with amazon.

Pls hepl.

Anyone can help? Thanks a lot

You can pm Mr.TomerFi and ask him.

Sent already, but got no response.