This error message can occur when a Garritan library is not successfully installed on a computer prior to activation. To resolve the issue, please uninstall and reinstall the library by following the steps provided in the articles linked below:
Finale Technical Support Has Ended
Help is available via written support resources and online communities, such as user forums and social media groups.
Browse available support resources here.
You may continue to download & authorize registered Finale products for the foreseeable future.
Additionally, we continue to offer Dorico Pro crossgrades for purchase to eligible Finale & PrintMusic license holders.