Implementing Android TimePicker from Tutorial - Source Force Closes

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http://stackoverflow.com – I'm trying to implement a TimePicker into my source code from the following tutorial: http://www.lukehorvat.com/blog/android-time-picker-example/ However when implementing it in my app - I'm getting force close issues. Any suggestions? JAVA: import android.app.Activity; import android.app.AlertDialog; import android.os.AsyncTask; import android.os.Bundle; import android.view.ViewGroup; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.TimePicker; impor (HowTos)