Hi,

I have tried regenerating some data access objects but, am encountering the following error.

The type or namespace name 'DerivedTableDefinition' could not be found (are you missing a using directive or an assembly reference?)

I am using version 2.6 Final but, the project file is from an older application which was generated in llblgenpro v2.

Can anyone advise me on resolving this error?

click the 'show all files' on the dbgeneric / generated project in vs.net's solution explorer and in 'relationclasses' the class is then visible and you can add it. this happens if you haven't set 'CleanUpVsNetProjects' to true in project properties in the llblgen pro designer.