Почему android studio выдаёт ошибку

package com.example.myapplication

import android.os.Bundle
import android.widget.Button
import android.widget.EditText
import android.widget.TextView
import androidx.activity.enableEdgeToEdge
import androidx.appcompat.app .AppCompatActivity
import androidx.core.view.ViewCompat
import androidx.core.view.WindowInsetsCompat

class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
val label = findViewById<TextView>( R.id .main_text)
val data: EditText = findViewById( R.id .user_data)
val button: Button = findViewById( R.id .Clicker)

button.setOnClickListener // Это 18 строчка
{
var text = data.text.toString().trim()

}

super.onCreate(savedInstanceState)
enableEdgeToEdge()
setContentView(R.layout.activity_main)
ViewCompat.setOnApplyWindowInsetsListener(findViewById( R.id .main)) { v, insets ->
val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
v.setPadding(systemBars.left, systemBars.top , systemBars.right, systemBars.bottom)
insets
}
}
}