解决facebook登录sdk的minSdkVersion 15限制

异常：

Error:Execution failed for task ‘:app:processDebugManifest’.
Manifest merger failed : uses-sdk:minSdkVersion 11 cannot be smaller than version 15 declared in library [com.facebook.android:facebook-android-sdk:4.23.0] C:\Users\XXX.android\build-cache\18f39a99a6f577a66be8d25ad2eccd8d58a4b439\output\AndroidManifest.xml
Suggestion: use tools:overrideLibrary=”com.facebook” to force usage

解决办法：

<manifest ...>
    <!--facebook需要配置此代码才能支持15以下的设备-->
    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="22"           tools:overrideLibrary="com.facebook,android.support.customtabs" />
</manifest>     

主要是添加：tools:overrideLibrary="com.facebook,android.support.customtabs"