difference between xml and mpp files?

A

april

I'm wondering if saving a project file in xml format would lose or change any existing project information in the original .mpp file.

I created a simple project in .mpp format and then saved it as an xml file. When opening the xml file as a new project there was a warning that one of the sub-tasks C.1 is before the project starts. The project is as follows

task
- sub-tasks 1, 2,
task
- sub-tasks 1, 2,
task
- sub-task

task 1 and 2 has FS dependency, task 2 and 3 has Start-Start dependency

The warning window suggests tha
- if you want the project to begin on this date, change project start dat
- if a constraints is entered that results in the start date earlier than the planned date, change either the constraints of the project start date

But neither case should be true since
1. The only date that was entered in the .mpp file was project start date. Every other date is derived from dependencies (with duration of each task set to 1 day
2. There is no other constraints entered for task C.1. The only dependency is the SS dependency bertween task B and C

Any suggestions would be greatly appreciated
 
D

Dale Howard [MVP]

April --

How did you set the Start date for the project? Did you click Project -
Project Information and set the Start Date value there? I am not aware of
any file compatibility problems with using an XML file format. Let us know.




april said:
I'm wondering if saving a project file in xml format would lose or change
any existing project information in the original .mpp file.
I created a simple project in .mpp format and then saved it as an xml
file. When opening the xml file as a new project there was a warning that
one of the sub-tasks C.1 is before the project starts. The project is as
follows:
task A
- sub-tasks 1, 2, 3
task B
- sub-tasks 1, 2, 3
task C
- sub-task 1

task 1 and 2 has FS dependency, task 2 and 3 has Start-Start dependency.

The warning window suggests that
- if you want the project to begin on this date, change project start date
- if a constraints is entered that results in the start date earlier than
the planned date, change either the constraints of the project start date.
But neither case should be true since:
1. The only date that was entered in the .mpp file was project start date.
Every other date is derived from dependencies (with duration of each task
set to 1 day)
2. There is no other constraints entered for task C.1. The only dependency
is the SS dependency bertween task B and C.
 
D

Dale Howard [MVP]

April --

You need to set the Start date of the project by clicking Project - Project
Information and selecting the Start Date. Setting a Start date on the first
task in the project is not the same thing, and is probably the source of
your problems. Hope this helps.




april said:
Hi Dale,

I didn't set a project start date from project information, just picked a
date for the first sub-task A.1, so when viewing project information, the
project start date is autofilled with the same date.
 

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