TypeError: Cannot read properties of undefined (reading 'model') when updating rows and tasks

[gubeils]

I am encountering an issue when updating the rows and tasks in svelte-gantt version "^4.3.2". I receive the following error:

TypeError: Cannot read properties of undefined (reading 'model')

Here is a screenshot of my rows and tasks data:

I am using the method gantt.set({ rows, tasks }) to update the data.

[ANovokmet]

Any chance you could provide the error call stack?

[gubeils]

[ANovokmet]

Thank you. While I am fixing the issue, for an immediate fix, you can try checking if you are setting a task with a resourceId for a row that does not exist.

[roman-yukhno-axon]

Are there any updates? I faced the same problem. Tasks contain only existing resourceId.

UPD: I noticed that my tasks had two item with the same id.
But the issue is still exists when I try to reset rows and tasks by passing empty arrays. It causes only when gantt had rows and tasks before

gantt.$set({ rows: [], tasks: [] });

UPD2: I don't know how it works, but resetting in this way works (when I reset tasks at first, and then reset rows in the queue, exactly in this sequence). And then I can fill it together again (again in the queue)

gantt.$set({ tasks: [] });
setTimeout(() => gantt.$set({ rows: [] }), 0);

setTimeout(() => gantt.$set({ rows, tasks }), 0);

[ANovokmet]

@roman-yukhno-axon I was testing this on v4.4.2 that was just released and it seems like using gantt.$set({ rows: [], tasks: [] }); does not cause any errors. Could you try again? Setting rows: [] when there are tasks still causes errors and I will work on this further.

[roman-yukhno-axon]

@ANovokmet it works fine now (in 4.4.2). I try to set both new rows and tasks and it works without flushing it sequentally. Thanks!

gantt.$set({rows, tasks});

[leducminhthe]

i have error too, when i using gantt.removeTask(id) and set it again it error in version 4.4.2, but if i using version 4.2.4 it work