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https://issues.apache.org/jira/browse/LOG4NET-277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Bodewig updated LOG4NET-277:
-----------------------------------

    Fix Version/s: 1.2 Maintenance Release

Does your appender live in RootNameSpace.dll?

> Registering a custom Object Renderer in configuration file
> ----------------------------------------------------------
>
>                 Key: LOG4NET-277
>                 URL: https://issues.apache.org/jira/browse/LOG4NET-277
>             Project: Log4net
>          Issue Type: Bug
>          Components: Other
>    Affects Versions: 1.2.10
>         Environment: Windows .Net WebService
>            Reporter: Daniel Shoubridge
>             Fix For: 1.2 Maintenance Release
>
>
> When you include the line:
>      <renderer renderingClass="RootNameSpace.Namespace.RendererClass" 
> renderedClass="RootNameSpace.NameSpace.ClassToRender" />
> in the configuration file and call:
>      log4net.Config.XmlConfigurator.ConfigureAndWatch(New 
> IO.FileInfo(logfile))
> in global.asax, you get a TypeLoadException. Log4Net internal debugging 
> outputs the following:
> log4net:ERROR OptionConverter: Could not instantiate class 
> [LogLibrary.Log4NetObjRenderers.PdaLogObjRenderer].
> System.TypeLoadException: Could not load type 
> [LogLibrary.Log4NetObjRenderers.PdaLogObjRenderer]. Tried assembly [log4net, 
> Version=1.2.10.0, Culture=neutral, PublicKeyToken=1b44e1d426115821] and all 
> loaded assemblies
>    at log4net.Util.SystemInfo.GetTypeFromString(Assembly relativeAssembly, 
> String typeName, Boolean throwOnError, Boolean ignoreCase) in 
> c:\work\svn_root\apache\log4net\tags\log4net-1.2.10-rc2\build\package\log4net-1.2.10\src\Util\SystemInfo.cs:line
>  671
>    at log4net.Util.SystemInfo.GetTypeFromString(String typeName, Boolean 
> throwOnError, Boolean ignoreCase) in 
> c:\work\svn_root\apache\log4net\tags\log4net-1.2.10-rc2\build\package\log4net-1.2.10\src\Util\SystemInfo.cs:line
>  602
>    at log4net.Util.OptionConverter.InstantiateByClassName(String className, 
> Type superClass, Object defaultValue) in 
> c:\work\svn_root\apache\log4net\tags\log4net-1.2.10-rc2\build\package\log4net-1.2.10\src\Util\OptionConverter.cs:line
>  477
> log4net:ERROR XmlHierarchyConfigurator: Could not instantiate renderer 
> [LogLibrary.Log4NetObjRenderers.PdaLogObjRenderer].
> Work Around:
> 1, If you then stop the web server 
> 2, and comment out the <renderer line in the configuration file, 
> 3, start the web service again, 
> 4, then after it has started (global.asax has been processed) 
> 5, uncomment the <renderer line
> 6, the renderer will now work

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