Gear VR AndroidManifest.xml troubles ClassNotFoundException

[Foundry45]

I ran into some trouble with my AndroidManifest.xml... my app would just immediately crash. When I looked at the logs, the error was something like

 

AndroidRuntime: Caused by: java.lang.ClassNotFoundException: Didn't find class "com.mycompany.myappname.myAppProductName" on path: DexPathList[[zip file "/data/app/com.mycompany.myappname-2/base.apk"]

My AndroidManifest.xml was like this:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.mycompany.myappname">
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
	<application android:icon="@drawable/app_icon" android:label="@string/app_name">
	    <activity
		      android:name="myAppProductName"
		      android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"
		      android:label="@string/app_name"
		      android:launchMode="singleTask"
		      android:screenOrientation="landscape"
		      android:configChanges="screenSize|orientation|keyboardHidden|keyboard"
		      android:excludeFromRecents="true">
		      <intent-filter>
		       <action android:name="android.intent.action.MAIN" />
		       <category android:name="android.intent.category.INFO" />
		      </intent-filter>
		     </activity>
	  </application>
	<meta-data
      android:name="com.samsung.android.vr.application.mode"
      android:value="vr_only"/>
</manifest>

The key to fixing it was changing the android:name under activity to:

<activity     android:name="com.unity3d.player.UnityPlayerActivity"

[juanoldinho]

Thanks for the tip, it may be useful for other devs who are having trouble with their manifest file.