Hard to tell. It should be some type (i.e. class) that is mentioned in the log4net configuration (XML) within an appender.
Von: Peter K [mailto:pkfxtranspare...@gmail.com] Gesendet: Dienstag, 13. August 2013 22:33 An: Log4NET User Betreff: Re: Log4net ADONetAppender Thanks for the response. It is much appreciated. I went and checked and I did not have all of the same Powershell modules migrated to the new server. I migrated them over and still get the same error. What types of library should I be checking that I have migrated over? Thanks again for your help. Peter On Tue, Aug 13, 2013 at 2:45 PM, Dominik Psenner <dpsen...@gmail.com <mailto:dpsen...@gmail.com> > wrote: Hi The message indicates that something cannot be instantiated. Maybe you have misspelled some class name or you have forgot to copy over a library? Cheers 2013/8/13 Peter K <pkfxtranspare...@gmail.com <mailto:pkfxtranspare...@gmail.com> > Hello, I recently migrated an application to a new server (Windows 2008 Server R2, SQL Server 2008 R2, Poweshell) and everything works except I get an error when trying to log to the database. log4net:ERROR XmlHierarchyConfigurator: Could not create Appender [ADONetAppender] of type [log4net.Appender.ADONetAppender]. Reported error follows. System.ArgumentNullException: CreateConverterInstance cannot create instance, converterType is null Parameter name: converterType at log4net.Util.TypeConverters.ConverterRegistry.CreateConverterInstance(Type converterType) at log4net.Util.TypeConverters.ConverterRegistry.GetConverterFromAttribute(Type destinationType) at log4net.Util.TypeConverters.ConverterRegistry.GetConvertFrom(Type destinationType) at log4net.Util.OptionConverter.CanConvertTypeTo(Type sourceType, Type targetType) at log4net.Repository.Hierarchy.XmlHierarchyConfigurator.CreateObjectFromXml(Xm lElement element, Type defaultTargetType, Type typeConstraint) at log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElemen t element, Object target) at log4net.Repository.Hierarchy.XmlHierarchyConfigurator.CreateObjectFromXml(Xm lElement element, Type defaultTargetType, Type typeConstraint) at log4net.Repository.Hierarchy.XmlHierarchyConfigurator.SetParameter(XmlElemen t element, Object target) at log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlEleme nt appenderElement) log4net:ERROR XmlHierarchyConfigurator: Appender named [ADONetAppender] not found. Any help or suggestions would be greatly appreciated. I have tried Goggling for an answer but have not found anything. Thanks. Peter -- Dominik Psenner ## OpenPGP Key Signature ################################# # Key ID: B469318C # # Fingerprint: 558641995F7EC2D251354C3A49C7E3D1B469318C # ##########################################################
