Work to

app/src/main/res/layout/activity_login.xml

@@ -59,7 +59,7 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintHorizontal_bias="0.502"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/emailInputLogin" /!>
+        app:layout_constraintTop_toBottomOf="@+id/emailInputLogin" />
 
     <Button
         android:id="@+id/signInButtonLogin"