错误：包android.support.v7.internel.widget不存在

我开发了一个android应用程序（API 23），但它不起作用。我发现了以下错误：

  E:\AllInOne1\app\src\main\java\eniso\ia32\Rabie\allinone\spinnerActivity.java
  Error:(3, 42)
 error: package android.support.v7.internal.widget does not    exist
  Error:(4, 60) error: package    android.support.v7.internal.widget.AdapterViewCompat does not exist
  Error:(8, 65) error: cannot find symbol class OnItemSelectedListener
  Error:(23, 30) error: cannot find symbol class AdapterViewCompat
  Error:(30, 33) error: cannot find symbol class AdapterViewCompat
  Error:(22, 3) error: method does not override or implement a method from a     supertype
  Error:(29, 3) error: method does not override or implement a method from a   supertype
  Note: Some input files use or override a deprecated API.
  Note: Recompile with -Xlint:deprecation for details.
  Error:Execution failed for task ':app:compileDebugJavaWithJavac'.

这就是build.gradle（应用程序）

我已经安装了“android支持库”，但它不起作用

这就是snipperActivity.java：

 package eniso.ia32.Rabie.allinone;

import android.support.v7.internal.widget.AdapterViewCompat;
import   android.support.v7.internal.widget.AdapterViewCompat.OnItemSelectedListener;
import android.view.View;
import android.widget.AdapterView;

public class spinnerActivity extends TourismActivity implements OnItemSelectedListener {

 public void onItemSelected(AdapterView<?> parent, View view, 
            int pos, long id) {
        // An item was selected. You can retrieve the selected item using
        // parent.getItemAtPosition(pos)
    }

    public void onNothingSelected(AdapterView<?> parent) {
        // Another interface callback
    }



    @Override
    public void onItemSelected(AdapterViewCompat<?> arg0, View arg1,
            int arg2, long arg3) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onNothingSelected(AdapterViewCompat<?> arg0) {
        // TODO Auto-generated method stub

    }

  }

包eniso.ia32.Rabie.allinone；
导入android.support.v7.internal.widget.AdapterViewCompat；
导入android.support.v7.internal.widget.AdapterViewCompat.OnItemSelectedListener；
导入android.view.view；
导入android.widget.AdapterView；
公共类SpinerActivity扩展了TourismActivity实现了OnItemSelectedListener{
已选择公共视图（AdapterView父视图、视图、，
内部位置，长id）{
//已选择一个项目。您可以使用
//父项getItemAtPosition（pos）
}
未选择公共无效（AdapterView父级）{
//另一个接口回调
}
@凌驾
已选择公共视图（AdapterViewCompat arg0，视图arg1，
整数arg2，长arg3）{
//TODO自动生成的方法存根
}
@凌驾
未选择任何内容时公共无效（AdapterViewCompat arg0）{
//TODO自动生成的方法存根
}
}

能否显示

spinneralivity.java

的相关代码？为什么要将相同的

编译两次？
 package eniso.ia32.Rabie.allinone;

import android.support.v7.internal.widget.AdapterViewCompat;
import   android.support.v7.internal.widget.AdapterViewCompat.OnItemSelectedListener;
import android.view.View;
import android.widget.AdapterView;

public class spinnerActivity extends TourismActivity implements OnItemSelectedListener {

 public void onItemSelected(AdapterView<?> parent, View view, 
            int pos, long id) {
        // An item was selected. You can retrieve the selected item using
        // parent.getItemAtPosition(pos)
    }

    public void onNothingSelected(AdapterView<?> parent) {
        // Another interface callback
    }



    @Override
    public void onItemSelected(AdapterViewCompat<?> arg0, View arg1,
            int arg2, long arg3) {
        // TODO Auto-generated method stub

    }

    @Override
    public void onNothingSelected(AdapterViewCompat<?> arg0) {
        // TODO Auto-generated method stub

    }

  }