Error source code tutorial android studio

Good morning, I bought the sticker and I’m trying a estimote this tutorial on your site to create an app in Android using Android study.
When I run the app, there are so many errors, I attach the photo.
I also checked the stickers present on my cloud, and saw that they have an identifier eg: b68e06df56e71462.
I can put this in place of the identified UIDD value?
Septum where the major and minor field?
thanks in advance