Please update to version 2.14.1

[Kolyall]

Thanks for your great example.
Please update to version 2.14.1(https://github.com/google/ExoPlayer/releases)

exoplayer-practice-guide-sample/app/build.gradle

Line 37 in f822c34

implementation "com.google.android.exoplayer:exoplayer-core:2.12.1"