Divide the intent filter into two separate ones. If you mix them like this, the android will not determine that one of the two is a launch filter.
<activity
android:name=".MainActivity"
android:label="@string/guide_activity" >
<intent-filter>
<category android:name="android.intent.category.LAUNCHER" />
<action android:name="android.intent.action.MAIN" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data android:name="android.app.searchable"
android:resource="@xml/searchable"/>
</activity>
user658042
source
share