Error Messages in the Machine Properties Dialog Box The following error messages can appear in the box at the bottom of the General tab in the Machine Properties dialog box. Select an error message for troubleshooting tips. Access Is Denied Invalid NameSpace, Class Not Registered, Invalid Class Inventory Failed Due to Shortage of Inventory Licenses Inventory Failed: This Machine Is Running a Mac OS The Machine Could Not Be Reached The Network Path Was Not Found Parent topic:Error Messages