ERROR [2010-10-26 08:49:39Z]: System.NullReferenceException: Object reference not set to an instance of an object
  at System.String.Concat (System.Object arg0, System.Object arg1) [0x00000] in /home/lluis/nowork/mono/mcs/class/corlib/System/String.cs:1945
  at Mono.TextEditor.Highlighting.SyntaxModeService.WaitUpdate (Mono.TextEditor.Document doc) [0x0003a] in /home/lluis/work/monodevelop/main/src/core/Mono.Texteditor/Mono.TextEditor.Highlighting/SyntaxModeService.cs:309
  at Mono.TextEditor.Document.Mono.TextEditor.IBuffer.Replace (Int32 offset, Int32 count, System.String value) [0x00021] in /home/lluis/work/monodevelop/main/src/core/Mono.Texteditor/Mono.TextEditor/Document.cs:188
  at Mono.TextEditor.TextEditorData.Replace (Int32 offset, Int32 count, System.String value) [0x00009] in /home/lluis/work/monodevelop/main/src/core/Mono.Texteditor/Mono.TextEditor/TextEditorData.cs:227
  at MonoDevelop.CSharp.Formatting.CSharpFormatter.CorrectFormatting (Mono.TextEditor.TextEditorData data, Int32 start, Int32 end) [0x001ab] in /home/lluis/work/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp.Formatting/CSharpFormatter.cs:170
  at MonoDevelop.CSharp.Formatting.CSharpFormatter.InternalFormat (MonoDevelop.Projects.Policies.PolicyContainer policyParent, System.String mimeType, System.String input, Int32 startOffset, Int32 endOffset) [0x000a5] in /home/lluis/work/monodevelop/main/src/addins/CSharpBinding/MonoDevelop.CSharp.Formatting/CSharpFormatter.cs:206
  at MonoDevelop.Projects.Text.AbstractPrettyPrinter.FormatText (MonoDevelop.Projects.Policies.PolicyContainer policyParent, System.String mimeType, System.String input, Int32 fromOffest, Int32 toOffset) [0x0000d] in /home/lluis/work/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Text/IPrettyPrinter.cs:101
  at MonoDevelop.Projects.Text.AbstractPrettyPrinter.FormatText (MonoDevelop.Projects.Policies.PolicyContainer policyParent, System.String mimeType, System.String input) [0x0000d] in /home/lluis/work/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Text/IPrettyPrinter.cs:94
  at MonoDevelop.Projects.Text.Formatter.FormatText (MonoDevelop.Projects.Policies.PolicyContainer policyParent, System.String input) [0x00018] in /home/lluis/work/monodevelop/main/src/core/MonoDevelop.Core/MonoDevelop.Projects.Text/Formatter.cs:52
  at MonoDevelop.GtkCore.GuiBuilder.GuiBuilderService.FormatGeneratedFile (System.String file, System.String content, System.CodeDom.Compiler.CodeDomProvider provider) [0x0001d] in /home/lluis/work/monodevelop/main/src/addins/MonoDevelop.GtkCore/MonoDevelop.GtkCore.GuiBuilder/GuiBuilderService.cs:516
  at MonoDevelop.GtkCore.GuiBuilder.GuiBuilderService.GenerateSteticCode (IProgressMonitor monitor, MonoDevelop.Projects.DotNetProject project, MonoDevelop.Projects.ConfigurationSelector configuration) [0x004a1] in /home/lluis/work/monodevelop/main/src/addins/MonoDevelop.GtkCore/MonoDevelop.GtkCore.GuiBuilder/GuiBuilderService.cs:473
  at MonoDevelop.GtkCore.GuiBuilder.Generator.Run (IProgressMonitor monitor, MonoDevelop.Projects.DotNetProject project, MonoDevelop.Projects.ConfigurationSelector configuration) [0x00008] in /home/lluis/work/monodevelop/main/src/addins/MonoDevelop.GtkCore/MonoDevelop.GtkCore.GuiBuilder/GtkProjectServiceExtension.cs:53