This task is set to manual dates, but it can't end on its current date because it also has a no-later-than constraint that says it must end earlier.

To resolve this, do one of the following:

  1. change this task's dates to automatic,
  2. move the manual end date to %1@, so that the end constraint will be satisfied, or
  3. remove the no-later-than constraint, so that the task will remain at its current manual date.