Launching lib\main.dart on sdk gphone x86 in debug mode...
lib\main.dart:1

FAILURE: Build failed with an exception.

* Where:
Build file 'C:\Users\Osman Serdar ERKMEN\Desktop\Welcome-Login-Signup-Page-Flutter-master\android\build.gradle' line: 27

* What went wrong:
A problem occurred evaluating root project 'android'.
> A problem occurred configuring project ':app'.
   > org.gradle.internal.metaobject.AbstractDynamicObject$CustomMessageMissingMethodException: Could not find method setVariantDir() for arguments [debug] on task ':app:processDebugGoogleServices' of type com.google.gms.googleservices.GoogleServicesTask.

* 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

BU�LD FAILED in 1s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)