* What went wrong:
Execution failed for task ':gradle:compileGroovy'.
> BUG! exception in phase 'semantic analysis' in source unit 'C:\Users\ACER\AndroidStudioProjects\flutter\packages\flutter_tools\gradle\src\main\groovy\app_pl
ugin_loader.groovy' Unsupported class file major version 65
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 10s
1 actionable task: 1 executed
0% WAITING
> IDLE
Подробнее здесь: https://stackoverflow.com/questions/785 ... r-firebase
