a board needs a "columnProperty" to group cards into columns.

Warnings reference › kanban:columnProperty

Identifier

kanban:columnProperty

Raised by

Kanban

Since

1.34.0

What happened

The board was created with no columnProperty, no columns array and no bound grid, so there is nothing to group cards by and the board has no columns to draw. This is the configuration equivalent of an empty board: rows may be present, but none of them can be placed.

The fix

Name the row property that holds the column, or declare the columns explicitly.

The smallest fix

createKanban(el, { rows, columnProperty: 'status' });

Reference

Covered in full at the API reference.