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PONHibernate - Cannot set the ConfigurationCache property after calling Init
 

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  1. PONHibernate - Cannot set the ConfigurationCache property after calling Init
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    <p>In my S#arp Arch 2.0 project, I'm communicating with 2 databases. This runs fine locally with the ASP.Net Development Server (VS 2010) and passes unit tests requiring talking to either database.</p> <p>Next step was to Publish the project (using VS' built-in "Publish" menu option) to the in-house development server (Windows Server 2008 R2) and fire this thing up on a real server where people could actually see it.</p> <p>Now I get the exception shown in the title when I try to run the application. The exception is thrown at the = new NHibernateConfigurationFileCache() line below:</p> <pre><code>private void InitialiseNHibernateSessions() { NHibernateSession.ConfigurationCache = new NHibernateConfigurationFileCache(); NHibernateSession.InitStorage(this.webSessionStorage); NHibernateSession.AddConfiguration(NHibernateSession.DefaultFactoryKey, new[] { Server.MapPath("~/bin/SRN2.Infrastructure.dll") }, new AutoPersistenceModelGenerator().Generate(), Server.MapPath("~/NHibernate.config"), null, null, null); NHibernateSession.AddConfiguration(SRN2.Infrastructure.DataGlobals.OTHER_DB_FACTORY_KEY, new string[] { Server.MapPath("~/bin/SRN2.Infrastructure.dll") }, new AutoPersistenceModelGenerator().Generate(), Server.MapPath("~/NHibernate-OTHER.config"), null, null, null); } </code></pre> <p>Stack trace:</p> <pre><code>[InvalidOperationException: Cannot set the ConfigurationCache property after calling Init] SharpArch.NHibernate.NHibernateSession.set_ConfigurationCache(INHibernateConfigurationCache value) +105 SRN2.Web.Mvc.MvcApplication.InitialiseNHibernateSessions() in C:\code\SRN2-Sharp2\trunk\Solutions\SRN2.Web.Mvc\Global.asax.cs:122 SharpArch.NHibernate.NHibernateInitializer.InitializeNHibernateOnce(Action initMethod) +116 SRN2.Web.Mvc.MvcApplication.Application_BeginRequest(Object sender, EventArgs e) in C:\code\SRN2-Sharp2\trunk\Solutions\SRN2.Web.Mvc\Global.asax.cs:71 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +148 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&amp; completedSynchronously) +75 </code></pre>
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    1. USCarl Bussema
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    1. COSee if this helps: http://stackoverflow.com/questions/7286594/nhibernate-iis7-5-throws-a-session-factory-has-already-been-configured-with-th/7287521#7287521
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    2. COI don't see what that's doing any differently than this, except for wrapping it in a try/catch, and the catch just throws the exception, so that's not going to fix anything...
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      1. USCarl Bussema
    3. CONot sure of the answer, but it looks like your InitialiseNHibernateSessions method is being called multiple times. I'd suggest the first step would be to get the site running under IIS or IIS Express in your dev environment and reproduce the error - the ASP.NET development server has "a number of architectural differences" (Microsoft's words) from IIS, so you can't rely on getting the same behaviour as you will in a production environment. Try and get a local repro working and see what clues that gives you - then let us know :-)
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