On the Head First Android book I make a program, gives an error, when you press an error shows the Spinner object in Activity_Find_Beer.xml. From the name of the error I think that the reason is in the wrong link.
Please send to the right way

Thanks in advance for the answers!

Androidmanifest.xml

& lt; xml version = "1.0" encoding = "UTF-8"? & gt;
& lt; manifest xmlns: android = "http://schemas.android.com/apk/res/android"
  package = "com.example.beeradviser2" & gt;
  & lt; application
    Android: AllowBackup = "True"
    Android: icon = "@ MIPMAP / IC_LAUNCHER"
    Android: Label = "@ String / App_name"
    Android: Roundicon = "@ mipmap / ic_launcher_round"
    Android: Supportsrtl = "True"
    Android: Theme = "@ STYLE / APPTHEME" & GT;
    & lt; Activity Android: name = ". Findbeeractivity" & gt;
      & lt; INTENT-FILTER & GT;
        & lt; Action Android: name = "Android.Intent.action.Main" / & gt;
        & lt; Category Android: Name = "Android.intent.category.launcher" / & gt;
      & lt; / Intent-Filter & GT;
    & lt; / activity & gt;
  & lt; / application & gt;
& lt; / manifest & gt;

Activity_find_beer.xml

& lt; xml version = "1.0" encoding = "UTF-8"? & gt;
& lt; RelativeLayout XMLNS: Android = "http://schemas.android.com/apk/res/android"
  Android: Orientation = "Vertical" Android: layout_width = "match_parent"
  Android: layout_height = "Match_Parent" & gt;
  & lt; spinner
    Android: id = "@ + ID / Color"
    Android: layout_width = "Match_Parent"
    Android: layout_height = "wrap_content"
    Android: Layout_AlignParentTop = "True"
    Android: layout_centerHorizontal = "True"
    Android: layout_margintop = "37dp"
    Android: Entires = "@ Array / Beer_Colors" / & gt;
  & lt; button
    Android: id = "@ + ID / Find_Beer"
    Android: layout_width = "wrap_content"
    Android: layout_height = "wrap_content"
    Android: layout_alignleft = "@ + id / color"
    Android: layout_below = "@ + ID / Color"
    Android: Text = "@ String / Find_Beer"
    Android: OnClick = "OnClickfindbeer" / & gt;
  & lt; TextView
    Android: id = "@ + ID / BRANDS"
    Android: layout_width = "wrap_content"
    Android: layout_height = "wrap_content"
    Android: layout_alignleft = "@ + id / find_beer"
    Android: Layout_Below = "@ ID / Find_Beer"
    Android: layout_margintop = "18dp"
    Android: text = "@ String / Brands" / & gt;
& lt; / relativeLayout & gt;

strings.xml

& lt; resources & gt;
  & lt; String name = "app_name" & gt; Beer Adviser2 & LT; / String & GT;
  & lt; String-Array Name = "beer_colors" & gt;
    & lt; Item & gt; Light & lt; / Item & gt;
    & lt; Item & gt; Amber & LT; / Item & gt;
    & lt; Item & gt; brown & lt; / item & gt;
    & lt; Item & gt; Dark & ​​Lt; / Item & gt;
  & lt; / String-Array & GT;
  & lt; String Name = "Find_Beer" & gt; Find Beer! & lt; / String & GT;
  & lt; String Name = "Brands" / & gt;
& lt; / Resources & gt;

findbeeractivity.java

package com.example.beeradviser2;
Import Android.app.ActiveIVITY;
Import android.os.Bundle;
Import Android.View.View;
Import android.widget.spinner;
Import android.widget.textView;
Public Class FindbeeRactivity Extends Activity {
  @Override
  PROTECTED VOID OnCreate (Bundle SavedintanceState) {
    Super.ONCREATE (SavedintanceState);
    setContentView (R.Layout.Activity_Find_Beer);
  }
  Public Void OnClickfindbeer (View View) {
    TextView Brands = (TextView) FindViewByid (R.ID.Brands);
    Spinner Color = (Spinner) FindViewByid (R.ID.COLOR);
    String BeertyPe = String.Valueof (Color.getSelectItem ());
    brands.settext (beertype);
  }
}

Answer 1, Authority 100%

typo in

Android: entires = "@ Array / Beer_Colors"

Must be Entries .