I just upgraded to 2.5 after running into a Binary Formatter problem with a previous version. After updating the assemblies in my project to the 2.5 versions, all entity classes now yield the following compile error:

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

Where is this class located?

Thanks...

It's likely the code generator couldn't update your cs/vbproj file. Please in vs.net in solution explorer, go to EntityClasses and click the button to show all files. Then select it and rightclick -> include in project.

That was it, thanks!