ArchiCAD Migration Library not loading

[jkoenig1980]

I teach Architecture using ArchiCAD.

Over the summer our labs switched from AC24 to 27. None of the projects we did last year will load the doors/windows.

I think this is because the 24 we used was USA and the new is INT. 

Is there a way to migrate the 24 USA libraries in?

Or is something else the issue.

Operating system used: Windows

[Eduardo Rolon]

That is the reason.

Best option is to reinstall using the USA version.