RMD013 — A list item produced nothing

The render callback returned nothing for an item. A callback that returned something which is not an element is RMD031 instead.

Give it something to render for that item, or filter the item out of the array before it gets there. See lists.

Next

• All diagnostics — every code the framework can report.
• Checking your app — the faults proved from the source, before anything runs.