I get the following error when I run my project and since I am a newbie I am not sure where to start on this one.

TIA Terry Bottorff

System.InvalidOperationException was unhandled

  Message="An error occurred creating the form. See Exception.InnerException for details.  The error is: An error occurred while creating a new DataLayer for the business object."

  Source="Lighting"

  StackTrace:

       at Lighting.My.MyProject.MyForms.Create__Instance__[T](T Instance) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 190

       at Lighting.My.MyProject.MyForms.get_Customers()

       at Lighting.Customers.Main() in C:\Documents and Settings\Terry\My Documents\Visual Studio 2005\Projects\Lighting\Lighting\Customers.Designer.vb:line 2

       at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)

       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

       at System.Threading.ThreadHelper.ThreadStart()

I looks as though you have not setup your connection string in the DataSources collection.  It is trying to create a DataLayer which uses the DataSOurces collection.  You can use the Connection String Wizard or manually add a connection to the data sources.  This will be done in the AppMain.vb or program.cs file depending on which language you are using.  You will want to provide this in the SetDataSources method.  There is quite a bit of documentation regarding setting up a connection string (as well as a number of other posts here on the forum).  But the very first thing to look at would be your connection string in the SetDataSources method of the AppMain.vb file.