From 74e04bbb6ec372631a49f74bdf555c6f51cdae37 Mon Sep 17 00:00:00 2001
From: Radian <craziestdavid@gmail.com>
Date: Tue, 28 Nov 2017 18:27:44 +0800
Subject: [PATCH] Fixed Error attribute error.

I met the problem when building Unity app in Android platform with FB sdk version 7.10.1.

```
Error: The prefix "tools" for attribute "tools:overrideLibrary" associated with an element type "uses-sdk" is not bound.
```
Added this line solves the problem
reference : https://answers.unity.com/questions/1355793/error-while-saving-blame-file.html

So I want to share the bug and solution here.
---
 Facebook.Unity.Editor/android/DefaultAndroidManifest.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Facebook.Unity.Editor/android/DefaultAndroidManifest.xml b/Facebook.Unity.Editor/android/DefaultAndroidManifest.xml
index 05f74d295..874be2d67 100644
--- a/Facebook.Unity.Editor/android/DefaultAndroidManifest.xml
+++ b/Facebook.Unity.Editor/android/DefaultAndroidManifest.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.unity3d.player" android:installLocation="preferExternal" android:versionCode="1" android:versionName="1.0">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" package="com.unity3d.player" android:installLocation="preferExternal" android:versionCode="1" android:versionName="1.0">
   <supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true" android:xlargeScreens="true" android:anyDensity="true" />
   <application android:theme="@android:style/Theme.NoTitleBar.Fullscreen" android:icon="@drawable/app_icon" android:label="@string/app_name" android:debuggable="true">
     <activity android:name="com.unity3d.player.UnityPlayerActivity" android:label="@string/app_name">