Sure it´s a stupid thing, but I can´t find it....
It´s a typically use example for barries: https://constraintlayout.com/basics/barriers.html
When I try to connect a view with the barrier, it not appears a point link....and I can´t. [1]: https://i.ibb.co/25NYBwC/barrier-1.jpg
I updated Android Studio to version 4.1 and I use androidx.constraintlayout:constraintlayout:2.0.2
This is the code without the button linked:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:id="@+id/constraintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
tools:layout_editor_absoluteX="203dp"
tools:layout_editor_absoluteY="130dp" />
<androidx.constraintlayout.widget.Barrier
android:id="@+id/barrier"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:barrierDirection="end"
app:constraint_referenced_ids="textView,textView2"
tools:layout_editor_absoluteX="90dp"
tools:layout_editor_absoluteY="0dp" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:text="TextView"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView" />
<TextView
android:id="@+id/textView"
android:layout_width="89dp"
android:layout_height="25dp"
android:text="TextView"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>