[Android Studio] throw new gradleexception > Kotlin/Java/Android

Runtime jar files in the classpath should have the same version. these files were found in the classpath  

throw new gradleexception 

https://ilsognobella.tistory.com/29 

Kotlin releases

https://kotlinlang.org/docs/releases.html#release-details

[android/app/build.gradle]

 if (flutterRoot == null) {
throw new FileNotFoundException("Flutter SDK not found..")
 }