Export to project libre

Hello,
I want to export a project to Project Libre I have saved the project as xml. When I open with Project libre all the tasks for which I have used the function “earliest begin” come with a begin date according to the predecessor.
Is there a simple solution?
Thanks

Did you mean that you exported to MS Project and then imported MS Project file into ProjectLibre?
Earliest begin is not yet exported to MS Project, so it is lost after export, sorry. I have filed an enhancement request: https://github.com/bardsoftware/ganttproject/issues/1429

I export as xml file to be able to open it with ProjectLibre

The matter is, we have no “export as xml file”. GanttProject file itself is XML and we can export to MS Project XML format. Assuming that you use the latter, the answer is shown above. If you feed GanttProject file (.gan) to ProjectLibre, you need to contact ProjectLibre developers.

Yes I export to MS project xml. that is the only solution.
So no solution
Thank you