You will not be able to complete this sprint, as it includes sub-tasks that cannot be transitioned t

[Nonye]

 I am about to start a sprint and I got this error message, "You will not be able to complete this sprint, as it includes sub-tasks that cannot be transitioned to the "Done" column"
Please I need help with this?
Thanks

[Nic Brough -Adaptavist- · Accepted solution]

This means you have built a workflow for the sub-tasks that does not work (Jira lets you do this because it is flexible and a valid thing to do in some non-scrum cases).

You will need to change the workflow for the sub-tasks, ensuring that there is a way to transition them into the "done" column on the board (the very last column) - specifically by allowing them to transition into (one of) the status that is in the last column.