I'm trying to upload a task with corresponding sub-tasks to a project with the External System Import.
However I keep getting the following type of error:
- Error importing issue [externalId='autoid-341655679132137540', summary='Employee Name']
- Unable to link issue from autoid-341655679132137540 to 1 with link named 'sub-task-link': Cannot find imported issue key for external id 'autoid-341655679132137540'
This is the structure of my CSV file.

I'd be grateful for any help on this.