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Launching libmain.dart on Android SDK built for x86 in debug mode...
Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

* Where:
Build file 'E:flutterandroidappbuild.gradle' line: 73

* What went wrong:
A problem occurred evaluating project ':app'.
> Could not find method testimplementation() for arguments [junit:junit:4.12] on object of type org.gradle.api.internal.artifacts.dsl.dependencies .DefaultDependencyHandler.

* 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
Finished with error: Gradle task assembleDebug failed with exit code 1