Android first line of code

The log files are as follows:
-- on  -: +:36.265  17086-17086/stuapplication.pla.edu.cn.fragmentbestpractice w/dalvikvm:vfy:unable to findclassReferencedinchSignature (landroid/os/persistablebundle;) -- on  -: +:36.265  17086-17086/stuapplication.pla.edu.cn.fragmentbestpractice I/dalvikvm:could Not Find method Android.support.v7.app.AppCompatActivity.onCreate, referenced fromMethod Stuapplication.pla.edu.cn.fragmentbestpractice.NewsContentActivity.onCreate -- on  -: +:36.265  17086-17086/stuapplication.pla.edu.cn.fragmentbestpractice W/dalvikvm:vfy:unable To resolveVirtualMethod9140: landroid/support/v7/app/appcompatactivity;. OnCreate (Landroid/os/bundle; landroid/os/persistablebundle;) V -- on  -: +:36.265  17086-17086/stuapplication.pla.edu.cn.fragmentbestpractice d/dalvikvm:vfy:replacing opcode0x6fAt0x0000
　　　　　　　　　　　　　　　　　　　　　

Related code:

public class Newstitlefragment extends Fragment implements Adapterview.onitemclicklistener {

.....

  @Override  public  void  Onitemclick (adapterview<?> parent, view view, int  position, Span style= "color: #0000ff;" >long   ID) {News  = news    Newsarraylist.get (position);  if   (Istwopagemodel) {LOG.V ( "    Newstitlefragment "," Sorry, pad screen adapter not complete ");  else   { }}.....}

 public  class  newscontentactivity Span style= "color: #0000ff;" >extends   appcompatactivity { public  static  void   ACTIONStart (context context, string title, string content) {Intent Intent  = new  Intent (context,newscontentactivity.        Class  );        Intent.putextra ( "title" , title);        Intent.putextra ( content ", content);        context.startactivity (intent);     LOG.V ( "newscontentactivity", "startactivity" ); } 
 .... 
}  

At the end of execution, the program does not execute the newscontentactivity OnCreate method.

Android first line of code