IssueTracker

For context: https://www.reddit.com/r/androiddev/comments/ct2dpr/android_studio_35_project_marble_goes_into_stable/exk4avl?utm_source=share&utm_medium=web2x

Extracted from the link:

The correct way to use data binding expressions with included tags is:

======================================================
custom_control.xml
<layout>
  <data>
    <variable name="item" type="..." />
  </data>
 
  <Your>
    <Layout>
      <Here>
        <!-- Note: "app:item" is defined by a @BindingAdapter -->
        <SomeView app:item="@{item}" />
      </Here>
    </Layout>
  </Your>
</layout>

and then call it from a layout:

activity_main.xml
  ...
  <include layout="@layout/CustomControl" app:item="@{... db expression... }" />
======================================================

However, screwing this up leads to an error message like:

=======================================
Cannot find a setter for 'app:item' that accepts parameter type '...'

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

It would be nice to provide a clearer, more helpful error message in this case