Hello,
I create b4a_exoplayer library from https://github.com/AnywhereSoftware/B4A_ExoPlayer
with exoplayer 2.9.0's aar file, compile ok
then I use this library in B4A 8.50
1.set min sdk = 16, target sdk = 28
2.set v28 android.jar in configure paths
exoplayer release note...