If you see this error or similar after using Migration Manager in Vectorworks 2016 to import an old workspace from a previous version: "The plug-in tool "Renderworks Camera" could not be selected. It is missing necessary resources or the file is damaged."
This can be remedied simply by removing the tool via the Workspace Editor, and re-adding it from the All Tools or All Menus section of the editor. Steps on using the Workspace Editor can be found here:
Edited by JimW