I am trying to build a video conferencing application using AWS chime. What I am trying to do is to follow the official documentation that is https://aws.amazon.com/blogs/business-productivity/building-a-meeting-application-using-the-amazon-chime-sdk/ but when I tried this I get an error after running this command in cloud9. I had replayed bucket name and stack name. The error is
[Error code][1]