Failed to load AppCompat ActionBar with unknown error.Android Studio 3.1.3

Question

This was my first time using Android studio and I dont know what are those errors mean or what they implyenter image description here

[Render Problem Fa

Answer 1

Please change com.android.support:appcompat-v7:28.0.0-alpha3 to com.android.support:appcompat-v7:28.0.0-alpha1 in build.gradle(Module: App).

And click File -> Invalidate Caches / Restart

Of course you need internet access.

It seems there is a bug in com.android.support:appcompat-v7:28.0.0-alpha3