Error: Package has unknown or missing coordinate system

[LaneHartman]

When I try to add a layer package to Explorer that has feature classes from a .GDB I get the error: Package has unknown or missing coordinate system. Also images from .GDB do not display. This error comes up: XML Parser initialization failed.  I've installed the projection expansion pack, but that didn't fix anything.

[MarkBockenhauer]

Lane,

Can you share the package?

Mark

[LaneHartman]

Yes, I've done that.  When I try to open it on the Vista Laptop is when I get the error messages in the Repair Layer Dialogue

[LaneHartman]

Attached is one of the .lpk files that is not showing up in my map.  I have noticed that of the layer packages that do not show up in the repair layers dialogue, only the layers that weren't in a file geodatabase are the ones that show up.

[MarkBockenhauer]

I tried the package you attached in ArcGIS Explorer 1500, and it works.  No, broken links.



The package appears to be in good shape.

I saved the Package to my C drive, and then Opened it via Add Content - ArcGIS Layers. 
I then saved the map, and re-opened the map (same machine), and it all worked as expected.

Do you have more information that would help in understanding why it is not working in your environment?

thanks,
Mark

[LaneHartman]

I talked to Tech Support and we figured out that it was the xml Parser (msxml4.dll).  I had to unregister and re-register it.  That fixed all the problems I was having.