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Gantt ยท console.warn

gantt: applyEdit for unknown task "{id}" ignored.

Printed by Gantt, prefixed [lattice], since 1.34.0.

Warnings referencegantt-edit-unknown-*

Identifier
gantt-edit-unknown-*
Raised by
Gantt
Since
1.34.0

What happened

applyEdit() carried an id that is not a task in the plan (including id: undefined, which reads as null). Nothing was changed and the previous schedule was returned unchanged.

The fix

Ids are compared as strings, so a numeric id and its string form match but a mismatched type nested inside the patch does not. Check the id against the plan's own tasks.

The smallest fix

gantt.applyEdit({ id: task.id, start: newStart });

Reference

Covered in full at the API reference.