Extension Development - cannot register my models to be displayed on the admin page

[JohnnyMcA]

Hello everyone!
I am not entirely sure, whether this is the right way to ask for help, but I am really struggling to register my Model to be displayed on the admin page. 

I am currently using Reviewboard 3.0.21.

I have a small model which needs to be displayed: SoftwareProjectModel

has_admin_site is set to True. 

In admin.py, I write the following: 

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from myextension.extension import MyExtension

from  myextension.models import SoftwareProjectModel

# Register the Model so it will show up in the admin site.

MyExtension.admin_site.register(SoftwareProjectModel)

-----------------------------------------------------

Within Review Boards admin panel -> Manage Extensions it says: 

Does anybody know what the problem could be?

I do not know whether this information is suffice, or whether more input is needed to make an educated guess.

I am more than happy to supply you with more details, if necessary.

[JohnnyMcA]

Oh noes! 
I am more than sorry. Right after I submitted my message, I realized that there's a dedicated Review Board Development group.

Moving the thread is not possible, right? I have never used google groups before.

Best regards!

[JohnnyMcA]

I have moved the initial message to the "Review Board Development"- Group. This renders the current conversation deletable.

Alex