We have 2 computers running both Ganttproject 3.3.3312.
On computer A we created a planning and checked the .gan file into SVN. When we open this .gan file on computer B, we get a scheduler report stating some of the tasks have been modified.
Opening the file on computer A produces no scheduler report and planning is we intended it to.
Differences we see between the same file on computer A and computer B:
On computer B, the tickbox “earliest begin” is not checked whereas on computer A this is ticked. If I tick it on computer B, it is unticked again when I press the OK button.
Begin date on computer A is oct 7, 2024, whereas on computer B this is set to septermber 26, 2024.
I have attached screenshots and the .gan file in question. Anybody an idea why this may be happening?
I see that the log was produced by GP 3312, however, are you sure that you open the file with 3312? Maybe there is an older version (e.g. GP 3.3.3300) that opens the file?
good point to check. I’ve opened the file (got the remark about replanning) and want to the help - about menu to double check. But it is effectively 3.3.3312.
To make 110% sure I asked my colleage on computer A to perform the same check (and confirmed to be 3.3.312), save the file, send it via mail to me (computer B) and I reopened it and checked my version. Also there 3.3.3312.
I deinstalled the version I had and followed all instructions to run the version from the zip, but I’m not able to do this. I took notes of all the steps I took in the attached PDF file.
I just realized I installed JRE21 and not 17… deinstalled JRE21 and replaced it with JRE17 and now the software from the zipfile starts properly and does not show the problem with the moved tasks.
My guess is that the libraries from two different GanttProject 3.3 build got mixed up in the same directory, and you actually were running the code of 3300, although it was reported as 3312
