I have a sql table called UserDashboard with column called UserID and is defined as a PK. I generate the entity classes and the UserDashboardEntity.vb class is created. When I call the following, i get an error that

    Dim dataAccessAdapter As New DataAccessAdapter
    Dim userID As Integer = Owner.GetUserID

    Dim UserDashboard As New UserDashboardEntity(Convert.ToInt32(userID))

error occurs here --> dataAccessAdapter.FetchEntity(UserDashboard)

Error message The entity 'UserDashboardEntity' doesn't have a PK defined, and FetchEntity therefore can't create a query to fetch it. Please define a PK on the entity

version info for SD.LLBLGen.Pro.ORMSupportClasses.NET20.dll is 2.5.8.328

Please post the full stack trace.
Also, check whether that field is marked as primary key in your LLBLGen project.

?ex {"The entity 'UserDashboardEntity' doesn't have a PK defined, and FetchEntity therefore can't create a query to fetch it. Please define a PK on the entity"} SD.LLBLGen.Pro.ORMSupportClasses.ORMQueryConstructionException: {"The entity 'UserDashboardEntity' doesn't have a PK defined, and FetchEntity therefore can't create a query to fetch it. Please define a PK on the entity"} Data: {System.Collections.ListDictionaryInternal} HelpLink: Nothing InnerException: Nothing Message: "The entity 'UserDashboardEntity' doesn't have a PK defined, and FetchEntity therefore can't create a query to fetch it. Please define a PK on the entity" Source: "SD.LLBLGen.Pro.ORMSupportClasses.NET20" StackTrace: " at SD.LLBLGen.Pro.ORMSupportClasses.DataAccessAdapterBase.FetchEntity(IEntity2 entityToFetch, IPrefetchPath2 prefetchPath, Context contextToUse, ExcludeIncludeFieldsList excludedIncludedFields) at SD.LLBLGen.Pro.ORMSupportClasses.DataAccessAdapterBase.FetchEntity(IEntity2 entityToFetch) at Dashboard.LoadStateFromSession() in C:\Projects\MarketingProjectManagement\Modules\UserControl\Dashboard\Dashboard.ascx.vb:line 48" TargetSite: {System.Reflection.RuntimeMethodInfo}

where do i check in the LLBLGen project that field is marked as primary key?

Yes, it shows (PK) next to UserId in the project

And, are you sure your project is in sync with your code? That means double-check you are generating code to the appropriate location and re-generate just to make sure you didn't make some changes that are not reflected in your code.

If the problem persists please prepare a tiny repro solution that reproduce the problem: a SQL DDL script, your llblgen project file and the code (without bin/ folder nor dll's). Then zip all that and attach it to the thread so we can reproduce the problem. If you want you can create a new HelpDesk thread, which is private to do so.