Project not being created in Firebase. What is the problem?

Question

android studio

Hello. In short: I can’t figure out how to connect a project to Firebase (or create one).
I tried it on video from the Firebase docks and through synchronization with Google.
The second option for this vidos: https://youtu.be/CXUTA-h1wds
No new projects appear in Firebase.
Here is a screenshot from build.gradle (may come in handy) Like

this

mistake

All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes). Found versions 28.0.0, 26.1.0. Examples include com.android.support:animated-vector-drawable:28.0.0 and com.android.support:support-media-compat:26.1.0
Inspection info:There are some combinations of libraries, or tools and libraries, that are incompatible, or can lead to bugs. One such incompatibility is compiling with a version of the Android support libraries that is not the latest version (or in particular, a version lower than your targetSdkVersion).

issues.
Issues with library versions. I don't know if that could be the reason or not.