Could not find method implementation() for arguments

[RaudaJairo]

Hey, I am having an issue when I run react-native run-android:

* Where:
Build file 'C:\Users\jairo\Documents\Magoo\android\build.gradle' line: 16

* What went wrong:
A problem occurred evaluating root project 'Magoo'.
> Could not find method implementation() for arguments [project ':unityLibrary'] 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.

I am not sure what I am doing wrong