# Latest **URL:** https://help.ganttproject.biz/latest.md [Latest](https://help.ganttproject.biz/latest.md) · [Categories](https://help.ganttproject.biz/categories.md) · [Tags](https://help.ganttproject.biz/tags.md) --- ## [READ ME FIRST. FAQ and Search](https://help.ganttproject.biz/t/read-me-first-faq-and-search/8)
**Author:** [@system](https://help.ganttproject.biz/u/system)\ **Replies:** 0\ **Last updated:** [March 6, 2017, 6:45pm UTC](https://help.ganttproject.biz/t/read-me-first-faq-and-search/8 "2017-03-06T18:45:22Z")
You’re welcome to ask any questions about GanttProject here, but we strongly recommend to read the FAQ and search before asking. This may really help you to get the answer faster. Search To search this site, click searc… --- ## [Print crops top and bottom lines](https://help.ganttproject.biz/t/print-crops-top-and-bottom-lines/12442)
**Author:** [@JohnR](https://help.ganttproject.biz/u/JohnR)\ **Replies:** 3\ **Last updated:** [October 28, 2026, 10:46am UTC](https://help.ganttproject.biz/t/print-crops-top-and-bottom-lines/12442 "2026-10-28T10:46:32Z")
Print from gantt chart view has very small top and bottom margins that crops the content (half the “week” line and half of the bottom-most task). Content is otherwise OK. Using Win11, A4, print all pages. --- ## [Find previous version gan file](https://help.ganttproject.biz/t/find-previous-version-gan-file/12441)
**Author:** [@Christian\_Tarky](https://help.ganttproject.biz/u/Christian_Tarky)\ **Replies:** 1\ **Last updated:** [October 22, 2026, 11:30pm UTC](https://help.ganttproject.biz/t/find-previous-version-gan-file/12441 "2026-10-22T23:30:33Z")
I rename my gan project in my laptop. i want to find the previous version --- ## [Schedule not updated after changing dates](https://help.ganttproject.biz/t/schedule-not-updated-after-changing-dates/12439)
**Author:** [@SebastienH](https://help.ganttproject.biz/u/SebastienH)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 5:49pm UTC](https://help.ganttproject.biz/t/schedule-not-updated-after-changing-dates/12439 "2026-10-21T17:49:04Z")
When I change a date or a predecessor, the schedule is not affected, and the dates do not propagate. It only works if I save the project and reopen it. Did I miss something? … maybe the beta version !? --- ## [Rescheduling tasks beyond the current date](https://help.ganttproject.biz/t/rescheduling-tasks-beyond-the-current-date/12432)
**Author:** [@Peace\_to\_the\_world](https://help.ganttproject.biz/u/Peace_to_the_world)\ **Replies:** 0\ **Last updated:** [October 10, 2026, 5:39am UTC](https://help.ganttproject.biz/t/rescheduling-tasks-beyond-the-current-date/12432 "2026-10-10T05:39:16Z")
Please implement a feature that automatically moves incomplete tasks to the current date. In other words, completed tasks would remain as they are, while the start date for incomplete tasks would automatically be updated… --- ## [From email: Display resources in the Gantt chart](https://help.ganttproject.biz/t/from-email-display-resources-in-the-gantt-chart/12408)
**Author:** [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Replies:** 0\ **Last updated:** [September 3, 2026, 8:05pm UTC](https://help.ganttproject.biz/t/from-email-display-resources-in-the-gantt-chart/12408 "2026-09-03T20:05:18Z")
From email To get a better overview, I’d like to display these resources in the Gantt chart as well. Unfortunately, I haven’t been able to find a way to do this yet. Could you help me with this? --- ## [From email: iPhone app](https://help.ganttproject.biz/t/from-email-iphone-app/269)
**Author:** [@dbarashev](https://help.ganttproject.biz/u/dbarashev)\ **Replies:** 2\ **Last updated:** [August 27, 2026, 8:46pm UTC](https://help.ganttproject.biz/t/from-email-iphone-app/269 "2026-08-27T20:46:19Z")
Hie! I’m wondering if you’re going to release a iPhone app. Would be great. If not why not just a only read app for the computer file. It would be very helpful. Or if you already have a way to read on your smartphone? --- ## [Swedish holidays 2026-2030](https://help.ganttproject.biz/t/swedish-holidays-2026-2030/12403)
**Author:** [@hmartinsson](https://help.ganttproject.biz/u/hmartinsson)\ **Replies:** 1\ **Last updated:** [August 25, 2026, 7:04pm UTC](https://help.ganttproject.biz/t/swedish-holidays-2026-2030/12403 "2026-08-25T19:04:16Z")
Here are the Swedish holidays 2026-2030. I hope they can be useful. /Hans \ \ \ **Author:** [@mlangestrom](https://help.ganttproject.biz/u/mlangestrom)\ **Replies:** 3\ **Last updated:** [August 20, 2026, 1:50pm UTC](https://help.ganttproject.biz/t/suggestion-show-weeks-in-task-calendar/12381 "2026-08-20T13:50:49Z") Hello, Can’t find any suggestions regarding this. Nor any settings. Id like to have weeks displayed in the task calendar, as shown in my image. Our time plans is always in weeks, so right now I need to have Outlook o… --- ## [How to renumber or reset task ids?](https://help.ganttproject.biz/t/how-to-renumber-or-reset-task-ids/12402)
**Author:** [@Jorge\_Mariani](https://help.ganttproject.biz/u/Jorge_Mariani)\ **Replies:** 4\ **Last updated:** [August 6, 2026, 4:00pm UTC](https://help.ganttproject.biz/t/how-to-renumber-or-reset-task-ids/12402 "2026-08-06T16:00:10Z")
I created a project, added a couple of tasks and then deleted the tasks. Next task I add is n° 3, not 1. --- ## [Unable to connect GanttProject Desktop — port connection error](https://help.ganttproject.biz/t/unable-to-connect-ganttproject-desktop-port-connection-error/12399)
**Author:** [@Michael\_Merler](https://help.ganttproject.biz/u/Michael_Merler)\ **Replies:** 1\ **Last updated:** [July 29, 2026, 1:02pm UTC](https://help.ganttproject.biz/t/unable-to-connect-ganttproject-desktop-port-connection-error/12399 "2026-07-29T13:02:29Z")
Hi, I’m trying to authorize GanttProject Desktop through the browser authentication flow, but I get the following error (see attached screenshot): “We were unable to contact GanttProject Desktop on port 59792. Please c… --- ## [Resource availability impact on task duration](https://help.ganttproject.biz/t/resource-availability-impact-on-task-duration/12397)
**Author:** [@Bart\_C](https://help.ganttproject.biz/u/Bart_C)\ **Replies:** 4\ **Last updated:** [July 28, 2026, 8:59am UTC](https://help.ganttproject.biz/t/resource-availability-impact-on-task-duration/12397 "2026-07-28T08:59:01Z")
Hello, I’d like to know how to make GanttProject modify the duration (or end date) of a task depending on the (in)availability of a ressource allocated to the task. Thank you --- ## [Vertical line at milestone](https://help.ganttproject.biz/t/vertical-line-at-milestone/12395)
**Author:** [@jockel68](https://help.ganttproject.biz/u/jockel68)\ **Replies:** 1\ **Last updated:** [July 12, 2026, 9:16pm UTC](https://help.ganttproject.biz/t/vertical-line-at-milestone/12395 "2026-07-12T21:16:42Z")
how can i generate a vertical line at a milestone? --- ## [Text doesn't show in task columns](https://help.ganttproject.biz/t/text-doesnt-show-in-task-columns/6519)
**Author:** [@Eleanor](https://help.ganttproject.biz/u/Eleanor)\ **Replies:** 5\ **Last updated:** [July 11, 2026, 2:45am UTC](https://help.ganttproject.biz/t/text-doesnt-show-in-task-columns/6519 "2026-07-11T02:45:25Z")
Whenever I add a task and edit the details in task properties, no text appears under the task columns for task name, begin date, end date etc. The following error message has appeared: Something went wrong com/sun/java… --- ## [Beginn and end of a task determined by other tasks](https://help.ganttproject.biz/t/beginn-and-end-of-a-task-determined-by-other-tasks/12393)
**Author:** [@jockel68](https://help.ganttproject.biz/u/jockel68)\ **Replies:** 0\ **Last updated:** [July 9, 2026, 11:55am UTC](https://help.ganttproject.biz/t/beginn-and-end-of-a-task-determined-by-other-tasks/12393 "2026-07-09T11:55:16Z")
Hi, i want that the begin of task determined by the end of an other task and the end of the task must end with a milestone thanks --- ## [Custom role set name not showing up when making a new project](https://help.ganttproject.biz/t/custom-role-set-name-not-showing-up-when-making-a-new-project/7089)
**Author:** [@durian188](https://help.ganttproject.biz/u/durian188)\ **Replies:** 4\ **Last updated:** [June 19, 2026, 12:18am UTC](https://help.ganttproject.biz/t/custom-role-set-name-not-showing-up-when-making-a-new-project/7089 "2026-06-19T00:18:41Z")
Following the information in I have added a new set of Resource roles \ \ \ \ \ **Author:** [@Cleo](https://help.ganttproject.biz/u/Cleo)\ **Replies:** 4\ **Last updated:** [June 17, 2026, 9:03am UTC](https://help.ganttproject.biz/t/ganttproject-ne-souvre-pas-et-bloque-sur-un-fond-blanc/12388 "2026-06-17T09:03:02Z") Mon logiciel fonctionnait puis il a bloqué. J’ai mis fin à la tache avec le gestionnaire de tache. Impossible de d’ouvrir mon fichier : message " failed to launch jvm" J’ai réinstallé ganttproject et java voila l’aspe… --- ## [Is it possible to fix the task column widths irrespective of panel slider position?](https://help.ganttproject.biz/t/is-it-possible-to-fix-the-task-column-widths-irrespective-of-panel-slider-position/12293)
**Author:** [@andrew1](https://help.ganttproject.biz/u/andrew1)\ **Replies:** 2\ **Last updated:** [June 12, 2026, 3:24pm UTC](https://help.ganttproject.biz/t/is-it-possible-to-fix-the-task-column-widths-irrespective-of-panel-slider-position/12293 "2026-06-12T15:24:17Z")
I am fairly new to GanttProject, but so far it’s looking a nice solution for our needs. However, I am finding the column configuration a little frustrating and was wondering if anyone else was having the same issues. In… --- ## [Text formating suggestion](https://help.ganttproject.biz/t/text-formating-suggestion/9822)
**Author:** [@mevequoz](https://help.ganttproject.biz/u/mevequoz)\ **Replies:** 1\ **Last updated:** [May 19, 2026, 3:05pm UTC](https://help.ganttproject.biz/t/text-formating-suggestion/9822 "2026-05-19T15:05:06Z")
Hello, I searched the forum for a possibilty of formating the text of task and found this: Comment out gan document / Formatting / Trancparency where you say: I’m enjoying using Ganttproject but was wondering if you a… --- ## [I can't add new task](https://help.ganttproject.biz/t/i-cant-add-new-task/12366)
**Author:** [@g.tille](https://help.ganttproject.biz/u/g.tille)\ **Replies:** 2\ **Last updated:** [May 18, 2026, 4:41am UTC](https://help.ganttproject.biz/t/i-cant-add-new-task/12366 "2026-05-18T04:41:16Z")
I can’t add new tasks. When I right-click, the menu appears, but the “New Task” button is grayed out and I can’t click on it. If I go to the Tasks menu, I can click the “New Task” button, but nothing happens. --- ## [Sub-task schedule doesn't automatically pull in?](https://help.ganttproject.biz/t/sub-task-schedule-doesnt-automatically-pull-in/12364)
**Author:** [@eescott](https://help.ganttproject.biz/u/eescott)\ **Replies:** 1\ **Last updated:** [May 11, 2026, 5:45pm UTC](https://help.ganttproject.biz/t/sub-task-schedule-doesnt-automatically-pull-in/12364 "2026-05-11T17:45:24Z")
Hi, let’s suppose I have a project with a few linked tasks where one of the tasks is a parent task (not sure the right term here, sorry). If one of the predecessors of that parent task is pulled in, say duration changes … --- ## [.xls import warning, assignment as date](https://help.ganttproject.biz/t/xls-import-warning-assignment-as-date/12363)
**Author:** [@csimeon](https://help.ganttproject.biz/u/csimeon)\ **Replies:** 4\ **Last updated:** [May 8, 2026, 3:08pm UTC](https://help.ganttproject.biz/t/xls-import-warning-assignment-as-date/12363 "2026-05-08T15:08:30Z")
When I export a project as .xls Without any editing when I import the same file, the program gets a warning I tried formatting the spreadsheet column of \[Roles\] as text and not to interpret as date (I use WPS Calc … --- ## [.xls to Gantt, what about scheduling options? star/end/duration "is calculated"](https://help.ganttproject.biz/t/xls-to-gantt-what-about-scheduling-options-star-end-duration-is-calculated/12362)
**Author:** [@csimeon](https://help.ganttproject.biz/u/csimeon)\ **Replies:** 2\ **Last updated:** [May 7, 2026, 2:16pm UTC](https://help.ganttproject.biz/t/xls-to-gantt-what-about-scheduling-options-star-end-duration-is-calculated/12362 "2026-05-07T14:16:37Z")
Is the export .xls back to import a completely data lossless pathway? It seems to be. The only thing I have not found recorded in the .xls, as a column scheduling options: star/end/duration “is calculated” --- ## [\[3.2\] Display issue between 3.1 and 3.2](https://help.ganttproject.biz/t/3-2-display-issue-between-3-1-and-3-2/4410)
**Author:** [@Frantz](https://help.ganttproject.biz/u/Frantz)\ **Replies:** 13\ **Last updated:** [April 15, 2026, 10:10am UTC](https://help.ganttproject.biz/t/3-2-display-issue-between-3-1-and-3-2/4410 "2026-04-15T10:10:38Z")
Hi, I have a display issue since I upgraded to version 3.2. Here’s a screenshot of my project in version 3.1.3103: The same project in version 3.2.3220: You can see that the left part (tasks tree texts) is unrea… --- ## [Feature request: Zooming out to Quarter/Year timeline](https://help.ganttproject.biz/t/feature-request-zooming-out-to-quarter-year-timeline/1547)
**Author:** [@mh1252315](https://help.ganttproject.biz/u/mh1252315)\ **Replies:** 7\ **Last updated:** [April 6, 2026, 1:52pm UTC](https://help.ganttproject.biz/t/feature-request-zooming-out-to-quarter-year-timeline/1547 "2026-04-06T13:52:44Z")
Hello, unfortunately I created the gantt chart for my research proposal in ganttproject and have only now realized, that you cant zoom out to more then a monthly view. This makes it impossible to display a 5 year plan m… --- ## [How to import resources from Excel](https://help.ganttproject.biz/t/how-to-import-resources-from-excel/166)
**Author:** [@ukmark](https://help.ganttproject.biz/u/ukmark)\ **Replies:** 10\ **Last updated:** [April 1, 2026, 10:33am UTC](https://help.ganttproject.biz/t/how-to-import-resources-from-excel/166 "2026-04-01T10:33:41Z")
Can i import resources from Excel? If yes do i need row headers? I assume that each resource occupies each row. do my columns have to match the information as per the new resource ? I set up a small list and tried to imp… --- ## [Arbitrary Years?](https://help.ganttproject.biz/t/arbitrary-years/12352)
**Author:** [@AaronD](https://help.ganttproject.biz/u/AaronD)\ **Replies:** 5\ **Last updated:** [March 30, 2026, 8:28pm UTC](https://help.ganttproject.biz/t/arbitrary-years/12352 "2026-03-30T20:28:32Z")
As I browse the forum, I see lots of requests across lots of threads to be able to zoom out much farther than is presently possible. Please do that! Preferably without limit. But this thread is about the starting poin… --- ## [GanttProject showing a century in timescale](https://help.ganttproject.biz/t/ganttproject-showing-a-century-in-timescale/12350)
**Author:** [@malcaraz](https://help.ganttproject.biz/u/malcaraz)\ **Replies:** 1\ **Last updated:** [March 30, 2026, 7:00pm UTC](https://help.ganttproject.biz/t/ganttproject-showing-a-century-in-timescale/12350 "2026-03-30T19:00:02Z")
I already have checked some ideas on laaarge timescale. I am wondering if GP would be good tool to get some genealogy timelines with births and deaths. (decades). How to get such a large timescale in few pages? --- ## [I can't install the software](https://help.ganttproject.biz/t/i-cant-install-the-software/12349)
**Author:** [@Ross\_Doherty](https://help.ganttproject.biz/u/Ross_Doherty)\ **Replies:** 4\ **Last updated:** [March 25, 2026, 2:35pm UTC](https://help.ganttproject.biz/t/i-cant-install-the-software/12349 "2026-03-25T14:35:35Z")
I can’t install the software at all, it just says the file is corrupted and wont let me open the application have tried to install through java but still the file does not respond when trying to open it this software i… --- ## [From email: Shift Plan](https://help.ganttproject.biz/t/from-email-shift-plan/12351)
**Author:** [@DmitryBarashev](https://help.ganttproject.biz/u/DmitryBarashev)\ **Replies:** 1\ **Last updated:** [March 25, 2026, 2:00pm UTC](https://help.ganttproject.biz/t/from-email-shift-plan/12351 "2026-03-25T14:00:38Z")
this came by email Great work your planning tool i like much - best which i used so far. I could alredy to many friends recommend and they use it since this time. One question: Would it be a big work to make it possib… [Next page](https://help.ganttproject.biz/latest.md?page=1)