System.InvalidOperationException: A task may only be disposed if it is in a completion stat

[carlosalbertosousa]

error in the method OnDestroy in _task._task.Dispose();

Unhandled Exception:

System.InvalidOperationException: A task may only be disposed if it is in a completion state (RanToCompletion, Faulted or Canceled).

public override void OnDestroy()
{
_isRunning = false;

      if (_task != null)
      {
          _task.Dispose();
      }
  }

[hassanbht]

add

if (_task != null && _task.Status == TaskStatus.RanToCompletion)
{
    _task.Dispose();
}