<LinearLayout xmlns:android="http://schemas.
    xmlns:tools="http://schemas.
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"

    <TextView
        android:id="@+id/textview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/1" />
    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="#FF0000"
        android:text="button" />

</LinearLayout>
显示这样的错误：Element type "LinearLayout" must be followed by either attribute specifications, ">" or "/>".

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