Firebase version conflicts with support library

Question

I know this is a common question and I already read several posts and modify many times my gradle file but I can\'t find the solution.

The error message i

Answer 1

Using gradle app:dependencies, get a list of dependencies:

 +--- org.jetbrains.kotlin:kotlin-stdlib-jre7:..
|    \--- org.jetbrains.kotlin:kotlin-stdlib:..
|         \--- org.jetbrains:annotations:...
+--- com.google.firebase:firebase-core:16....
|    +--- com.google.firebase:firebase-analytics:16...
|    |    +--- com.google.android.gms:play-services-basement:15....
|    |    |    \--- com.android.support:support-v4:26.1.0
|    |    |         +--- com.android.support:support-compat:26.1.0 ->.......

it shows firebase needed com.android.support:support-v4:26.1.0, so you have to overwritten it with com.android.support:support-v4:28.0.0