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scheduler ยท console.warn

scheduler: an event's "{field}" is empty or ...

Printed by scheduler, prefixed [lattice], since 1.96.0.

Warnings reference › scheduler:unparsable-start

Identifier
scheduler:unparsable-start
Raised by
scheduler
Since
1.96.0

What happened

An event's start date did not read as a date, so no bar can be drawn for it. The event is not shown; it is counted in the model's unscheduled list instead of being thrown away.

The fix

Give every event a parseable start date, or drop the rows that have none.

The smallest fix

events: [{ id: 'e1', resourceId: 'alice', startDate: '2026-03-02 09:00' }]

Reference

Covered in full at the API reference.