Any clue, about how to solve this.. used to work.. ? Im lost....

Thanks in advance friends... I sent a screenshot of the debug too.... hope to help..... 

MicroFour.StrataFrame.Data.DataLayerException was unhandled
  Message="An error occurred while creating a new DataLayer for the business object."
  Source="MicroFour StrataFrame Business"
  StackTrace:
       at MicroFour.StrataFrame.Business.BusinessLayer.get__DataLayer()
       at MicroFour.StrataFrame.Business.BusinessLayer.FillDataTable(String SelectStatement)
       at futebol.ClubesBO.FillTop100() in C:\Documents and Settings\Ricardo\Meus documentos\Visual Studio 2005\Projects\futebol_SF\futebol_SF\Business Objects\ClubesBO.vb:line 68
       at futebol.frmCadClubes.ClubesBO1_ParentFormLoading() in C:\Documents and Settings\Ricardo\Meus documentos\Visual Studio 2005\Projects\futebol_SF\futebol_SF\Forms\frmCadClubes.vb:line 4
       at MicroFour.StrataFrame.Business.BusinessLayer.raise_ParentFormLoading()
       at MicroFour.StrataFrame.Business.BusinessLayer.RaiseParentFormLoadingEvent()
       at MicroFour.StrataFrame.UI.Windows.Forms.BaseForm.InitializeFormLoadObjects()
       at MicroFour.StrataFrame.UI.Windows.Forms.BaseForm.BaseForm_Load(Object sender, EventArgs e)
       at System.EventHandler.Invoke(Object sender, EventArgs e)
       at System.Windows.Forms.Form.OnLoad(EventArgs e)
       at System.Windows.Forms.Form.OnCreateControl()
       at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
       at System.Windows.Forms.Control.CreateControl()
       at System.Windows.Forms.Control.WmShowWindow(Message& m)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
       at System.Windows.Forms.ContainerControl.WndProc(Message& m)
       at System.Windows.Forms.Form.WmShowWindow(Message& m)
       at System.Windows.Forms.Form.WndProc(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
       at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       at System.Windows.Forms.SafeNativeMethods.ShowWindow(HandleRef hWnd, Int32 nCmdShow)
       at System.Windows.Forms.Control.SetVisibleCore(Boolean value)
       at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
       at System.Windows.Forms.Control.set_Visible(Boolean value)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(Form mainForm)
       at futebol.frmCadClubes.Main() in C:\Documents and Settings\Ricardo\Meus documentos\Visual Studio 2005\Projects\futebol_SF\futebol_SF\Forms\frmCadClubes.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()

Do you have any code that is changing the MicroFour.StrataFrame.Data.DataLayer.DataSources collection? If you're not manually changing the collection, change this line within SetDataSources():



ConnectionManager.ApplicationKey = "Cadastro de Clubes"



to



ConnectionManager.ApplicationKey = "Cadastro de Clubes2"



The, run the application. It should show you the connection string wizard and after you configure the connection, you should be good to go...