Hey,
I’m quite new to GanttProject. I have used it in one project before but am running into a strange problem I didn’t see before.
In my new project one of the earlier tasks got a duration by mistake which was to long. All succesors start dates where pushed forward accordingly.
Now as I corrected the predesessors duration the successors (many…) start date will not get adjusted.
It’s many successors with a lot of subtasks and no earliest begin was set in them. If I go into one of those tasks and set a start date manually it will work just fine. But I can’t do that for all of them.
All dependencies are set as Finish-Start with strong hardness.
I’ve read GanttProject Scheduler Explained - GanttProject Docs and if I get that right all start dates should be adjusted automaticelly.
Your help will be highly appreciated.
There is a known issue that FS dependencies won’t move the successor if it is a summary task. If the successor is not a summary task, it works fine.
thank you for replying so quickly. I just found the issue couple minutes ago. This is pretty bad for me in my current project as I do have lots of successors with lots of subtasks. Is there any estimation on when this will be fixed?
There is a workaround: you can create a fake child task (e.g. a milestone) and use it as a successor (more details in the linked bug report Summary task won't move backwards when its predecessor becomes shorter · Issue #2002 · bardsoftware/ganttproject · GitHub)
Currently I don’t have any estimations, sorry.
Thanks. I’ve seen that and tried it out an it works. But my tasks list is huge. It will be a sh…load of manual editing to get it working like that. Is this an new issue? Can I go back to an earlier version where it used to work?
No, it has always worked like this.
It is rather severe issue, of course, so it will be fixed sooner rather than later, but currently there are no estimations.
Ok. Now I’m lost. I tried to put in a dummy task into the delayed Summary task and give it a predessor. The summary task will start at the right date now but the sipplings in the summary task will not be moved. Don’t know what to do now.