We are trialing Reporting Services v9 on a customer's installation of DNN4.9.2.  The installation was fine, but when I put the module on a page I received the error:

Error: SSRS Test2 is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: C:\Web Sites\xxx\wwwroot\DesktopModules\RS2005\ViewRS2005.ascx(6): error BC30456: 'CreateResourceBasedLiteralControl' is not a member of 'ASP.desktopmodules_rs2005_viewrs2005_ascx'. ---> System.Web.HttpCompileException: C:\Web Sites\xxx\wwwroot\DesktopModules\RS2005\ViewRS2005.ascx(6): error BC30456: 'CreateResourceBasedLiteralControl' is not a member of 'ASP.desktopmodules_rs2005_viewrs2005_ascx'. at System.Web.Compilation.AssemblyBuilder.Compile() at System.Web.Compilation.BuildProvidersCompiler.PerformBuild() at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath) at System.Web.UI.TemplateControl.LoadControl(String virtualPath) at DotNetNuke.UI.Skins.Skin.InjectModule(Control objPane, ModuleInfo objModule, PortalSettings PortalSettings) --- End of inner exception stack trace ---

Any insights, we are excited about being able to use your module.

OK, I upgraded the site to DNN4.9.5 and that error went away.  I then received another error about the System.Web.Extensions needed to be 3.5, which was contradictory to the install docs, but then I installed RS2005_050100. 

Now, I have a new error.  I am running Reporting Services 5.1 on DNN 4.9.5 (don't ask why 4.9.5) and Report Viewer 9:

DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at BeckerSolutions.Modules.RS2005.ViewRS2005.3AAA0(Object 0AAAA, EventArgs 1AAAA) --- End of inner exception stack trace ---

Any thoughts?

I have sent the web.config.  Thanks for your help.

I have tried this in both Integrated and Classic modes, in case that matters.

There were no other errors in the event log.