Hi list, Until recently, we've been dealing with all errors in our Iliad application by having the Iliad error handler serialize them and send us an email referring to the file. This way, debugging was as easy as: *GRPlatform current openDebuggerOn: (FLMaterializer materializeFromFileNamed: 'errorReports/1366980822.obj'). * But recently this has stopped working, and I've just found out I can't even serialize simple errors. Something like: *[ 3 / 0 ] on: Error do: [ :error | FLSerializer serialize: error toFileNamed: 'error.obj' ] * brings out a debugger saying I need FuelMetalevel to fully serialize methods (which is installed, by the way). The error reads: *FLNotInstalledMethod: Serialization error. DoIt can not be serialized as global because it is not installed. You need FuelMetalevel to fully serialize methods. See the documentation.* I'm not sure whether one thing is related to the other... any ideas? -- Bernat Romagosa.