Compare / Error message

[floerio]

Hi!

We use the compare tool to allow "branches" of a main model. Now I want to integrate some changes from the main model into the branch.

To do so I exported a modified subpackage from package "A".  Then I start the branch model and mark the corresponding subpackage. Then I start the compare by "Manage Baseline-->Compare to other model".

As a result I receive an Error in the compare window "An error occurred".  Nothing more...

I can surpass this by not selecting the modified package but the outer package (example "A"). Then it works but the whole package A is compared.

So I have 2 question:

1) Can I see more detailed error information?
2) Why is it not working? Have I missed something?

Cheers,
   Oliver