我尝试在textview中显示文本，但出现以下错误：
不兼容的类型。找到：'android.view. view'，必填项：'com.示例.幸运和机会.文本视图'
代码如下：

package com.example.luckandchance;

import android.os.Bundle;
import androidx.appcompat.app.AppCompatActivity;
import android.view.View;
import androidx.navigation.ui.AppBarConfiguration;
import com.example.luckandchance.databinding.ActivityCoinTossBinding;

public class CoinToss extends AppCompatActivity {

private TextView textView4;
private Button button3;

    private AppBarConfiguration appBarConfiguration;
    private ActivityCoinTossBinding binding;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_coin_toss);

        textView4 = findViewById(R.id.textView4);
        button3 = findViewById(R.id.button3);
    }
}