Some objects from older Archicad libraries have no counterpart in a later library (typically, these are “discontinued” objects deemed obsolete). But if you have such objects placed in your project, you want them available even if after migrating.
Archicad Migration Libraries serve this purpose: they contain only those objects that do not have counterparts in the latest-version Archicad Library. A Migration Library is much smaller than full-version Archicad Library.
Why use Migration Libraries?
Migration Libraries help you avoid missing objects in your project. Migration Libraries are loaded automatically with two workflows:
•Migrate Archicad Libraries
See Migrating Libraries to Archicad 28.
•Consolidate Libraries
See Consolidate Multiple Archicad Libraries.
If you do not use these workflows, then some of your placed objects from older-version projects may not have a compatible corresponding object in Archicad 28. In this case:
•Those incompatible older objects will be “Missing Objects” if you have removed your old libraries. In this case, you must replace these missing objects with new ones from the Archicad 28 library, and reset their parameters as needed.
•Keeping your old libraries alongside your new libraries is not recommended, because many of the loaded objects will be duplicates and/or superfluous, and increase library loading time and potential errors.
•If you still have missing library parts, you may be using library parts from Archicad libraries earlier than version 17. If so, you must manually add the Old Archicad Migration Libraries folder to the project, using Library Manager.
Where to Find Migration Libraries
Migration Libraries are installed on your computer as part of Archicad installation. They are divided into two folders:
•Archicad Migration Libraries (for Archicad library versions 17 and up)
•Old Archicad Migration Libraries (generally available for Archicad library versions 10-16)
You can also download Migration Libraries from the Graphisoft website.
Note: Available migration libraries may vary, depending on your localized version.