I spent my days to solve the problem after update to AndroidStudio 3.3 Error below contionues to appear even i delete everything about android and android studio from my computer and reinstall again. Could not find method testImplementation() for arguments [junit:junit:4.12] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.Could not find method testImplementation() for arguments [junit:junit:4.12] on object