android编程遇到错误：解析xml：未绑定前缀

Question

xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >

x android:layout_width="match_parent"
app:logo="@drawable/menu_normal"
android:layout_height="70dp">

</android.support.appcompat_v7.widget.Toolbar>

Answer 1

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