[Help] Gradle sync failed: Could not find method android() for arguments

Hello,
I’am new to android developer, I just try to make my first android app.
When I sync my project, it show like this :
Gradle sync failed: Could not find method android() for arguments [build_3j716lsdl5fhkjeuvkcynpht5$_run_closure2@27717995] on root project ‘seruwit’ of type org.gradle.api.Project.

Can anyone help me please