Fix Gradle Could not initialize class AndroidSdkHandler in Android react native application please follow below step to fix the error
Error:-
A problem occurred configuring project ‘:app’.
> Failed to notify project evaluation listener.
> Could not initialize class com.android.sdklib.repository.AndroidSdkHandler
Fix
Set Java home path to correct location in Mac Os
Step 1. Open a terminal and check Java Version
java -version
Step 2. Set Java Home path to correct location
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/
Hit enter and run command to run react native project again
react-native run-android
Done