I am getting started for using DataBinding feature. I am facing problem with it.
Error:(21, 9) error: cannot find symbol class ContactL
Your problem might actually be on this line:
Android Studio gets a little confused at time and takes the include layout for the layout tag. What's even more frustrating is that this could work the first time, fails to work with a modification on the Java/Kotlin code later, and then work again after a tweak that forces it to rebuild the binding. You may want to replace tags with something that populates it dynamically.