invalid param in LinerLayout:layout.weight ???

Question

<?xml version="1.0" encoding="utf-8"?>
<LinerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation = "horizontal"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:showIn="@layout/activity_my">

    <EditText android:id = "@+id/edit_message"
        android:layout_weight = "1"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:hint = "@string/edit_message"/>
    <Button
        android:layout_width = "wrap_content"
        android:layout_height = "wrap_content"
        android:text = "@string/button_send"/>

</LinerLayout>

安卓开发

我按照官方教程做的，找不到哪里错了

Answer 1