A call requires API level 11 (current min - 8): android.app.Activity # onCreateView

Question

Today I updated the support for Android v7 appcompat to version 23. After the update, eclipse will show an error Call requires API level 11 (current min is 8): android.app.Activity#onCreateViewin the file header. This is my java code

package xxxxxx.xxxxxxx.xxxx.xx.activity;

import xxxxxx.xxxxxxx.xxxx.xx.R;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.LinearLayout;
import android.widget.TextView;

public class SingActivity extends AppCompatActivity {
    private LinearLayout layInfo;
    private TextView lblSongName;
    private TextView lblStatus;

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

        layInfo = (LinearLayout) findViewById(R.id.lay_info);
        lblSongName = (TextView) findViewById(R.id.lbl_song_name);
        lblStatus = (TextView) findViewById(R.id.lbl_status);
    }

    @Override
    public void onBackPressed() {
        finish();
    }
}