Manifest Merge Problem

Hello, I faced the problem with manifest merging. I use custom manifest. And i got error when i am adding permission.C2D_MESSAGE permissions. Without it there no errors. How to understand the problem? I checked libraries and there no thoose permissions. I'm using Unity 5.6.1f1

 Uncaught translation error: java.lang.IllegalArgumentException: already added: Lcom.mylib.test/Manifest;
 Uncaught translation error: java.lang.IllegalArgumentException: already added: Lcom.mylib.test/Manifest$permission;

Manifest Code:

 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:amazon="http://schemas.amazon.com/apk/res/android" android:installLocation="preferExternal" android:theme="@android:style/Theme.NoTitleBar" package="com.myapp.test" android:versionName="1.0" android:versionCode="1">
     <supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true" android:xlargeScreens="true" android:anyDensity="true" />
     <application android:icon="@drawable/app_icon" android:label="@string/app_name" android:debuggable="true">
         <activity android:name="com.unity3d.player.UnityPlayerProxyActivity" android:launchMode="singleTask" android:label="@string/app_name" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" android:screenOrientation="portrait">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
         <activity android:name="com.unity3d.player.UnityPlayerActivity" android:launchMode="singleTask" android:label="@string/app_name" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" android:screenOrientation="portrait">
             <intent-filter>
                 <action android:name="com.myapp.test.MESSAGE" />
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
         <activity android:name="com.unity3d.player.UnityPlayerNativeActivity" android:launchMode="singleTask" android:label="@string/app_name" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen" android:screenOrientation="portrait">
             <meta-data android:name="android.app.lib_name" android:value="unity" />
             <meta-data android:name="unityplayer.ForwardNativeEventsToDalvik" android:value="false" />
         </activity>
     </application>
     <uses-feature android:glEsVersion="0x00020000" />
 
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
 
     <!-- GCM part -->
     <permission android:name="com.myapp.test.permission.C2D_MESSAGE" android:protectionLevel="signature" />
     <uses-permission android:name="com.myapp.test.permission.C2D_MESSAGE" />
 </manifest>
 

Update: I just tried build via gradle and there no errors, seems internal builder is bugy