android-lint/testData/lint/motionLayoutWithoutLayoutDescription.xml

<?xml version="1.0" encoding="utf-8"?>
<<error descr="The attribute: `layoutDescription` is missing">android.support.constraint.motion.Mot<caret>ionLayout</error>
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/motionLayout"
    android:layout_height="match_parent"
    android:layout_width="match_parent">

  <TextView
      android:id="@+id/textView"
      android:layout_width="64dp"
      android:layout_height="64dp"
      android:background="#FF9999"
      android:text="1"
      app:layout_constraintTop_toTopOf="parent"
      app:layout_constraintStart_toStartOf="parent"/>

</android.support.constraint.motion.MotionLayout>