我该如何解决此错误……类型或程序包未知

Question

  

未知类型或包'com'..并设置

这是代码

import android.com.xenerjay.kingRibs.R;

public class MainActivity extends Activity 
{
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Toolbar tb = (Toolbar)findViewById(R.id.Toolbar);
        tb.setLogo(R.drawable.kinglogo2);
        set.supportActionbar(tb);