Thanks for your answer!
When I entered the following, the Development Environment allowed me to create a file backup:
DELETE FROM [dbo].[Cronus$Setup Table]
DELETE from [dbo].[Object] where Type = 0 and ID = 6010001
DELETE from [dbo].[Object] where Type = 1 and ID = 6010001
DROP TABLE [dbo].[Cronus$Setup Table]
GO