java - No resource identifier found for attribute 'showAsAction' in package "..." -

i trying modify default empty activity , form default activity action bar. there 2 activities made, both empty without actionbar. try achieve click on first activity(without actionbar) , navigate second activity(with actionbar). have done are:
1. add menu
2. modify second activity changing activity appcompatactivity
3. add support library v7-appcompat (which added referenced library. not sure whether should referenced lib or other format.)
manifest file part shown below:

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.example.tracker"     android:versioncode="1"     android:versionname="1.0" >      <uses-sdk         android:minsdkversion="14"         android:targetsdkversion="21" />      <application         android:allowbackup="true"         android:icon="@drawable/ic_launcher"         android:label="@string/app_name"         android:theme="@style/apptheme" >         <activity             android:name=".mainactivity"             android:label="@string/app_name" >             <intent-filter>                 <action android:name="android.intent.action.main" />                  <category android:name="android.intent.category.launcher" />             </intent-filter>         </activity>         <activity             android:name=".secondactivity"             android:label="@string/second" >         </activity>     </application>  </manifest> 

the first activity is:

package com.example.tracker;   import android.app.activity; import android.content.intent; import android.os.bundle; import android.view.view; import android.widget.button;  public class mainactivity extends activity {      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          //get button         button button1 = (button)findviewbyid(r.id.button1);         button1.setonclicklistener(new view.onclicklistener() {              @override             public void onclick(view v) {                 // todo auto-generated method stub                 intent intent= new intent(mainactivity.this,secondactivity.class);                 intent.setaction(intent.action_view);                 startactivity(intent);             }         });     }  } 

the second activity is:

package com.example.tracker;  import android.app.activity; import android.content.intent; import android.os.bundle; import android.support.v7.app.actionbar; import android.support.v7.app.appcompatactivity; import android.view.menu; import android.view.menuitem; import android.widget.toast;  public class secondactivity extends appcompatactivity {      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_second);     }     @override     public boolean oncreateoptionsmenu(menu menu) {         // inflate menu; adds items action bar if present.         getmenuinflater().inflate(r.menu.main, menu);         return true;     }      @override     public boolean onoptionsitemselected(menuitem item) {         return super.onoptionsitemselected(item);     } } 

the menu in res is:

<menu xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:app="http://schemas.android.com/apk/res-auto"     xmlns:tools="http://schemas.android.com/tools"     tools:context="com.example.tracker.mainactivity"      >      <item         android:id="@+id/myitem"         android:orderincategory="2"         android:title="myitem"         app:showasaction="never"/>     <item         android:id="@+id/action_settings"         android:orderincategory="1"         android:title="action_settings"         app:showasaction="never"/>  </menu> 

the observable problem menu has error written in title of problem. currently, first activity can run properly, however, when click button, application stops.

by removing app:showasaction="never" not solve problem.