Android cannot be resolved to a type
<p>I'm getting "cannot be resolved to a type" in my code. I'm looking for solution but all solutions are not working. </p>

<pre><code>import android.app.Activity;
import android.os.Bundle;
import android.view.View;

public class Vortex extends Activity {

    private static final String LOG_TAG = Vortex.class.getSimpleName();
    private VortexView _vortexView; //there is the problem

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        _vortexView = new VortexView(this);
        setContentView(_vortexView);
    }
}
</code></pre>

<p>The problem is with VortexView in this code. Eclipse tell me that VortexView cannot be resolved to a type.</p>

<p>Any solution?</p>
