STAAD.Pro HelpOpenSTAADOS. Troubleshooting OS. Troubleshooting The following is a list of error messages or warnings which may be displayed and methods used to address them. OS. Method Object FailedOS. Function is not retrieving correct valuesCheck to be sure that you have saved the STAAD file after making changes to the input before you run any OpenSTAAD functions that retrieve input information. If you are running STAAD functions that retrieve analysis results, check to be sure that you have saved the STAAD file and re-run the analysis after making any changes to the input.OS. Type MismatchOS. Property or Method Not SupportedOS. ActiveX Component in Microsoft ExcelOS. User Type Not DefinedOS. Files Not CompatibleParent Topic: OpenSTAAD