setOnClickListener, myProject has stopped

setOnClickListener, myProject has stopped

package org.example.myProject;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.content.Intent;
public class myProject extends Activity implements OnClickListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
View continueButton = findViewById(R.id.continue_button);
continueButton.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.about_button:
Intent i = new Intent(this, About.class);
startActivity(i);
break;
}
}
}
When I comment this line, the code works correctly:
continueButton.setOnClickListener(this);