SqlException
  An error has occurred while establishing a connection to the server.  When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

Source     : .Net SqlClient Data Provider

ArgumentNullException
  Value cannot be null.
Parameter name: node

Source     : System.Windows.Forms

Stack Trace:
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at System.Windows.Forms.TreeNodeCollection.Add(TreeNode node)
   at MicroFour.StrataFrame.AddIns.PartialClassBuilderDialog.BuildTreeView()