title: Can I delete meta-data in AndroidManifest
body: <p>Trying to install application via <code>ADB</code>:</p>
  
  <pre><code>adb -s emulator-5554 install -r  E:\D\android\MQTT\app\debug\app-debug.apk
  </code></pre>
  
  <p>Got error:</p>
  
  <pre><code>Performing Streamed Install
  adb: failed to install E:\D\android\MQTT\app\debug\app-debug.apk: Failure [INSTALL_PARSE_FAILED_MANIFEST_MALFORMED: Failed parse during installPackageLI: /data/app/vmdl630168997.tmp/base.apk (at Binary XML file line #26): &lt;meta-data&gt; requires an android:value or android:resource attribute]
  </code></pre>
  
  <p>AndroidManifest.xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.kpv.mqtt"&gt;
  
      &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /&gt;
      &lt;uses-permission android:name="android.permission.WAKE_LOCK" /&gt;
      &lt;uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /&gt;
  
      &lt;application
          android:name=".VTS"
          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;meta-data
              android:name="com.google.android.actions" /&gt;
  
          &lt;activity
              android:name=".helpers.AddDeviceActivity"
              android:label="@string/title_activity_add_device"
              android:parentActivityName=".MainActivity"&gt;
              &lt;meta-data
  
                  android:name="android.support.PARENT_ACTIVITY"
                  android:value=".MainActivity" /&gt;
          &lt;/activity&gt;
  
          &lt;receiver
              android:name=".StartupReceiver"
              android:enabled="true"
              android:exported="true"
              android:permission="android.permission.RECEIVE_BOOT_COMPLETED"&gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.BOOT_COMPLETED" /&gt;
                  &lt;action android:name="android.intent.action.QUICKBOOT_POWERON" /&gt;
  
                  &lt;category android:name="android.intent.category.DEFAULT" /&gt;
              &lt;/intent-filter&gt;
          &lt;/receiver&gt;
  
          &lt;activity android:name=".MainActivity"&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;service android:name="org.eclipse.paho.android.service.MqttService" /&gt;
      &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p>If I delete  lines below evrything goes fine.</p>
  
  <pre><code>&lt;meta-data
      android:name="com.google.android.actions" /&gt;
  </code></pre>
  
  <p>What meta-data is used for? Will I have problems if I just delete it? Why system complains regarding current meta-data? How to correct it?</p>