FluentNHibernateStorage giving Event Log Error when used in preload/auto-start

[MedfordChris]

I have implemented preload/auto-start for Hangfire as per the Hangfire documentation, and it works when using in-memory storage.
When I change the storage to FluentNHibernateStorage, the Application Pool stops running and I get the following error in the Event Log:

An error occurred while executing Preload method. Exception: System.Runtime.Serialization.SerializationException Message: Type is not resolved for member 'log4net.Util.PropertiesDictionary,log4net, Version=2.0.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a'. StackTrace: at System.Web.Hosting.PreloadHost.CreateIProcessHostPreloadClientInstanceAndCallPreload(String preloadObjTypeName, String[] paramsForStartupObj) at System.Web.Hosting.ProcessHost.PreloadApplicationIfRequired(String appId, IApplicationHost appHostParameter, HostingEnvironmentParameters hostingParameters, LockableAppDomainContext ac)

Using the FluentNHibernateStorage works fine if I don't preload/auto-start Hangfire.

[xavierjefferson]

Try installing log4net. It's set up as a dependency, but apparently it's not loading within your project

…

On Tue, Dec 28, 2021, 12:05 PM MedfordChris ***@***.***> wrote: I have implemented preload/auto-start for Hangfire as per the Hangfire documentation, and it works when using in-memory storage. When I change the storage to FluentNHibernateStorage, the Application Pool stops running and I get the following error in the Event Log: An error occurred while executing Preload method. Exception: System.Runtime.Serialization.SerializationException Message: Type is not resolved for member 'log4net.Util.PropertiesDictionary,log4net, Version=2.0.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a'. StackTrace: at System.Web.Hosting.PreloadHost.CreateIProcessHostPreloadClientInstanceAndCallPreload(String preloadObjTypeName, String[] paramsForStartupObj) at System.Web.Hosting.ProcessHost.PreloadApplicationIfRequired(String appId, IApplicationHost appHostParameter, HostingEnvironmentParameters hostingParameters, LockableAppDomainContext ac) Using the FluentNHibernateStorage works fine if I don't preload/auto-start Hangfire. — Reply to this email directly, view it on GitHub <#23>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AA6QVSSQD53BGZXOVNN2CUTUTH36JANCNFSM5K4RQ7JQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.*** com>

[MedfordChris]

I have log4net loaded in the project. I confirmed that version 2.0.13.0 of log4net.dll is in the bin folder of the deployed website.

[MedfordChris]

Does FluentNHibernateStorage extend MarshalByRefObject? I see MarshalByRefObject mentioned several places online as required to avoid the error SerializationException: Type is not resolved for member "..."