Exception occurred: Object reference not set to an instance of an object

System.NullReferenceException: Object reference not set to an instance of an object
in <0x00181> MonoDevelop.Ide.Gui.Dialogs.NewProjectDialog:InitializeComponents ()
in <0x001ab> MonoDevelop.Ide.Gui.Dialogs.NewProjectDialog:InitializeTemplates ()
in <0x000b6> MonoDevelop.Ide.Gui.Dialogs.NewProjectDialog:.ctor (Boolean openCombine)
in <0x0001b> MonoDevelop.Ide.Commands.NewProjectHandler:Run ()
in <0x0000b> MonoDevelop.Components.Commands.CommandHandler:Run (System.Object dataItem)
in <0x00056> MonoDevelop.Components.Commands.ActionCommand:DispatchCommand (System.Object dataItem)
in <0x00354> MonoDevelop.Components.Commands.CommandManager:DispatchCommand (System.Object commandId, System.Object dataItem)