Cannot change start date in new project

1

My new project auto inserted a start date for 2020; it is now 2024 and under Project - Settings - Calendar it will not accept new start date. I am running versin 3.1

2

There is no such thing as “project start” date in GanttProject. The project starts when its first task starts.

3

thanks. Also will not allow me to change date in first task. Help again. Dave Hunn

4

Please share the project file.