"Step.07*" branches do not compile

[brunoalr]

Both exercise and solution branches do not compile with error:

Cannot find a setter for <android.widget.TextView android:text> that accepts parameter type 'error.NonExistentClass'

If a binding adapter provides the setter, check that the adapter is annotated correctly and that the parameter type matches.

I did not change the code at all.

[Fanfouna]

I had the same issue. To solve it, delete your .idea and your .gradle folder so that Android studio can rebuild your project from scratch. This will fix the issue.