android - "cannot resolve constructor FirebaseRecyclerAdapter" when trying to use FirebaseUI -

i using firebaseui's firebaserecycleradapter described in github.

but getting error (cannot resolve constructor firebaserecycleradapter). tried possible still getting same error.

here activity

firebase ref = new firebase("https://myapp.firebaseio.com/shoplist");  recyclerview recyclerview; string enteredshopname;  private firebaserecycleradapter<chat, chatholder> mrecyclerviewadapter;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      toolbar toolbar = (toolbar) findviewbyid(r.id.toolbar);     setsupportactionbar(toolbar);      recyclerview = (recyclerview) findviewbyid(r.id.recyclerview);     recyclerview.sethasfixedsize(true);     recyclerview.setlayoutmanager(new linearlayoutmanager(this));      floatingactionbutton fab = (floatingactionbutton) findviewbyid(r.id.fab);     fab.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view view) {             createdialog();         }     }); }  @override protected void onstart() {     super.onstart();      attachrecyclerviewadapter(); }  private void attachrecyclerviewadapter() {     mrecyclerviewadapter = new firebaserecycleradapter<chat, chatholder>(             chat.class, r.layout.message, chatholder.class, ref) {          @override         public void populateviewholder(chatholder chatview, chat chat, int position) {             chatview.setname(chat.getname());           }     };                 }     });      mrecyclerviewadapter.setadapter(mrecyclerviewadapter); }  private void createdialog() {     alertdialog.builder dialogbuilder = new alertdialog.builder(this);     layoutinflater inflater = this.getlayoutinflater();     final view dialogview = inflater.inflate(r.layout.addshop_dialog, null);     dialogbuilder.setview(dialogview);      final edittext randeephooda = (edittext) dialogview.findviewbyid(r.id.et_shopname);      enteredshopname = randeephooda.gettext().tostring();      dialogbuilder.settitle("add shop");     dialogbuilder.setpositivebutton("add", new dialoginterface.onclicklistener() {         public void onclick(dialoginterface dialog, int whichbutton) {             //do edt.gettext().tostring();               chat chat = new chat(enteredshopname);             ref.push().setvalue(chat);         }     });      dialogbuilder.setnegativebutton("cancel", new dialoginterface.onclicklistener() {         public void onclick(dialoginterface dialog, int whichbutton) {             //pass         }     });      alertdialog b = dialogbuilder.create();     b.show(); } 

my pojo

    string name;      public chat() {     }      public chat(string name) {         this.name = name;      }      public string getname() {         return name;     } 

my viewholder

    public chatholder(view itemview) {         super(itemview);         mview = itemview;     }      public void setname(string name) {         textview field = (textview) mview.findviewbyid(r.id.shoprecyclerview_textview);         field.settext(name);     } } 

change

mrecyclerviewadapter.setadapter(mrecyclerviewadapter);//this line caused error 

to

recyclerview.setadapter(mrecyclerviewadapter);//need set adapter recyclerview 

done.